Image Specifications – Threaded Fastener Assembly
Camera: Canon EOS 5D Mark IV Lens: 2× Macro Lens
Exposure Settings: ISO: 100 Aperture: f/13 (selected to preserve depth-of-field across hex head geometry, thread profiles, and corrosion features) Shutter Speed: 1/160 sec
Focus Stacking: Number of Frames: 18 images (to maintain full depth-of-field across threads, hex faces, and localized corrosion)
Lighting:
Cygnustech-diffused on-camera flash (Speedlite)
Tripod-mounted camera
Macro focusing rail for controlled focus advancement
Remote release / timer to eliminate vibration
Processing:
Focus stack composited in Adobe Photoshop
Tonal normalization and clarity adjustments applied for accurate surface and corrosion representation
No retouching or structural alteration applied Surface Condition & Corrosion Documentation
Threaded Fastener Assembly – Macro Failure Analysis Documentation
Component: Threaded fastener with integrated washer
Application: Mechanical assembly fastener (automotive / power equipment–type hardware)
Study Type: Non-destructive visual inspection (macro imaging)
Imaging Objective
Document the surface condition, thread integrity, and material state of a threaded fastener recovered from service or storage to support failure analysis, corrosion assessment, and engineering evaluation.
Imaging Methodology
High-resolution macro photography was performed using diffused strobe illumination to control specular highlights on metallic surfaces. Multi-frame focus stacking was applied to achieve full depth-of-field across thread geometry, washer interface, and fastener head features. Imaging was conducted in an as-received condition prior to cleaning or mechanical alteration.
Observations
Thread geometry appears intact with no evidence of shear failure or thread stripping.
Surface oxidation and discoloration are present across thread faces and washer surfaces, consistent with environmental exposure or long-term storage.
Localized surface pitting and texture variation observed along the threads.
Washer exhibits uneven wear patterns and surface contamination.
No visible cracking, fracture, or gross deformation of the fastener head or threaded section.
Engineering Interpretation
Visual evidence suggests material degradation driven by corrosion and environmental exposure rather than mechanical overload or installation-related failure. Thread engagement features remain structurally intact, indicating the fastener likely retained functional integrity prior to removal. Observed surface condition may contribute to increased friction, torque variation, or reduced service life if reused.
Use Case
Images used to support:
Non-destructive failure analysis
Corrosion and surface condition assessment
Root-cause hypothesis development
Engineering documentation and teardown records
Notes
This documentation does not include dimensional measurement, torque testing, or metallurgical analysis. No digital modifications affecting structural interpretation were applied beyond focus stack compositing and tonal normalization.
Image Specifications – Hex Head Bolt Macro Surface Condition & Corrosion Documentation
Camera: Canon EOS 5D Mark IV
Lens: 2× Macro Lens
Exposure Settings:
ISO: 100
Aperture: f/13 (selected to preserve depth-of-field across hex head geometry, thread profiles, and corrosion features)
Shutter Speed: 1/160 sec
Focus Stacking:
Number of Frames: 18 images (to maintain full depth-of-field across threads, hex faces, and localized corrosion)
Lighting:
Cygnustech-diffused on-camera flash (Speedlite)
Tripod-mounted camera
Macro focusing rail for controlled focus advancement
Remote release / timer to eliminate vibration
Processing:
Focus stack composited in Adobe Photoshop
Tonal normalization and clarity adjustments applied for accurate surface and corrosion representation
No retouching or structural alteration applied
Stability:
Hex Head Bolt – Macro Surface Condition & Corrosion Documentation
Component: Hex head bolt with external threads
Application: Structural / mechanical fastener (automotive-grade hardware)
Study Type: Non-destructive visual inspection (macro imaging)
Imaging Objective
Document thread condition, surface coating integrity, and corrosion characteristics of a hex head bolt in as-received condition to support material evaluation, service-life assessment, and engineering review.
Imaging Methodology
High-resolution macro photography was performed using diffused strobe lighting to control specular reflections and preserve surface detail across metallic finishes. Multi-frame focus stacking was applied to ensure full depth-of-field across thread geometry, fastener head features, and bearing surface. Imaging was conducted prior to cleaning or mechanical manipulation.
Observations
Thread geometry remains continuous with no visible stripping, galling, or shear deformation.
Surface coating exhibits localized wear and breakdown, with visible discoloration and oxidation along thread roots and bearing surfaces.
Greenish and brown corrosion products observed, consistent with zinc-plated steel exhibiting environmental exposure and coating degradation.
Fastener head edges show minor rounding and surface abrasion, consistent with installation and removal cycles.
No visible cracking or fracture observed at the shank, head, or thread runout.
Engineering Interpretation
Visual evidence suggests corrosion-driven surface degradation and coating fatigue rather than mechanical overload or tensile failure. Thread integrity appears preserved, though coating breakdown may contribute to increased friction, altered torque-tension relationship, and reduced corrosion resistance in continued service. Observations support evaluation of environmental exposure conditions and coating performance relative to service requirements.
Use Case
Images used to support:
Non-destructive fastener inspection
Corrosion and coating performance assessment
Engineering documentation and teardown records
Root-cause hypothesis development
Notes
This documentation does not include dimensional verification, torque testing, or metallurgical analysis. No digital alterations affecting structural interpretation were applied beyond focus stack compositing and tonal normalization.
Image Specifications –
Carburetor Component Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Canon 24-70mm
Exposure Settings:
ISO: 100
Aperture: f/13 (to maximize depth on metallic structures)
Shutter Speed: 1/160 sec
Focus Stacking: 15 images
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights
Stability: Tripod-mounted; timer; macro rail
Processing: Focus stack blended in Adobe Photoshop; contrast and clarity enhanced for technical accuracy
Electric Motor Winding Assembly – Macro Failure Analysis Documentation
Component: Electric motor copper winding assembly
Application: Power tool motor (representative electric motor architecture)
Study Type: Non-destructive visual inspection (macro imaging)
Imaging Objective
Document the condition of the copper winding assembly prior to teardown to support failure analysis, material evaluation, and engineering review.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe illumination with cross-polarization to minimize specular reflection from conductive surfaces. Multi-frame focus stacking was applied to achieve full depth-of-field across the winding geometry and adjacent components. Imaging was conducted with the component in an as-received condition.
Observations
Copper windings appear continuous with no visible fracture, burn-through, or arc damage.
Enamel insulation shows no obvious blistering, peeling, or thermal degradation.
Winding geometry and coil spacing remain uniform with no evidence of displacement or mechanical deformation.
Light particulate contamination is present on winding surfaces and surrounding housing, consistent with environmental exposure or long-term storage.
Adjacent resin and insulating materials appear intact with no visible cracking or charring.
Engineering Interpretation
Macro documentation supports elimination of catastrophic electrical winding failure as a primary failure mode. Visual evidence suggests the component remained structurally intact, indicating potential failure origin external to the winding assembly (e.g., bearings, commutation system, electrical control, or duty-cycle exceedance).
Use Case
Images used to support:
Non-destructive failure analysis
Root-cause hypothesis development
Engineering review and technical reporting
Pre-teardown documentation baseline
Notes
This documentation does not include dimensional measurement or electrical performance testing. No digital alteration affecting structural interpretation was applied beyond focus stack compositing and tonal normalization.
Carburetor Assembly – Macro Surface Condition & Component Documentation
Component: Carburetor assembly (fuel delivery component)
Material: Cast metal housing with steel and brass subcomponents
Application Context: Internal combustion fuel/air metering system
Study Type: Non-destructive visual inspection (macro imaging)
OEM Context: Stellantis-style engineering documentation
Imaging Objective
Document the surface condition, assembly integrity, and visible wear characteristics of a carburetor assembly in as-received condition to support component evaluation, serviceability assessment, and engineering review within an OEM teardown or legacy-system analysis context.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe lighting to manage specular reflections across mixed metallic surfaces. Multi-frame focus stacking was applied to preserve full depth-of-field across concentric assemblies, fasteners, cable elements, and internal geometry visible from the exterior. Imaging was conducted prior to cleaning, disassembly, or mechanical manipulation to preserve original condition and evidence of use.
Visual Observations
Housing and internal components exhibit uniform concentric alignment with no visible fracture or structural deformation.
Surface oxidation and discoloration observed on exposed metal surfaces, consistent with age-related environmental exposure.
Cable and fastener elements remain intact, with localized surface wear and coating loss visible at contact points.
Deposits and residue present along internal surfaces, consistent with fuel exposure and operational byproducts.
No visible cracking, catastrophic corrosion, or mechanical separation observed within the documented view.
Engineering Interpretation
Observed conditions suggest gradual surface degradation and residue accumulation consistent with operational aging rather than acute mechanical failure. Surface oxidation and deposits may contribute to reduced efficiency, altered airflow or fuel delivery characteristics, and increased maintenance requirements. Visual evidence supports further functional testing or disassembly-based inspection if performance degradation is suspected.
Use Case
Images support:
Non-destructive component inspection
Fuel system component documentation
Wear and contamination assessment
Engineering teardown records
Legacy system evaluation and comparison
Notes & Limitations
This documentation reflects surface-level visual analysis only. No airflow testing, fuel flow analysis, dimensional verification, or internal metrology was performed. Image processing was limited to focus stack compositing and tonal normalization; no alterations affecting structural interpretation were applied.
Image Specifications –
Carburetor Component Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Canon 24-70mm
Exposure Settings:
ISO: 100
Aperture: f/13 (to maximize depth on metallic structures)
Shutter Speed: 1/160 sec
Focus Stacking: 15 images
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights
Stability: Tripod-mounted; timer; macro rail
Processing: Focus stack blended in Adobe Photoshop; contrast and clarity enhanced for technical accuracy
Dime – Macro Surface Condition & Component Documentation
Component: Dime (U.S. 10-cent coin)
Material: Clad metal composition (Copper core with nickel coating)
Application Context: Circulating currency, collector evaluation, and numismatic study
Study Type: Non-destructive visual inspection (macro imaging)
OEM Context: Stellantis-style engineering documentation
Imaging Objective
Document the surface condition, strike integrity, and visible wear characteristics of a dime in as-received circulated condition to support numismatic assessment, wear analysis, and archival documentation. Imaging aims to capture edge detail, obverse/reverse relief, and surface features without mechanical handling that could alter condition.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe lighting to manage reflections on metallic surfaces. Multi-frame focus stacking was applied to maintain full depth-of-field across convex and concave regions, rim edges, lettering, and relief features. Imaging was conducted prior to any cleaning or polishing to preserve original condition and evidence of circulation.
Visual Observations
Obverse (front) and reverse (back) surfaces exhibit legible relief elements with minor flattening on high points consistent with circulation wear.
Edge reeding remains largely intact, with localized smoothing on contact points.
Surface exhibits uniform oxidation and toning, consistent with environmental exposure and handling.
Minor scratches, nicks, and microabrasions present across both faces, predominantly along the rim and raised relief areas.
No structural deformation, cracks, or evidence of corrosion-induced delamination observed.
Engineering Interpretation
Observed conditions indicate gradual surface degradation and abrasion consistent with normal circulation wear rather than acute damage. Oxidation and toning patterns suggest exposure to typical environmental conditions. Surface wear may slightly reduce visual relief detail but does not compromise structural integrity. Visual evidence supports further metallurgical or numismatic analysis if grading, authentication, or compositional verification is required.
Use Case
Images support:
Non-destructive numismatic inspection
Circulation wear assessment
Archival documentation of coins for reference or comparison
Collector grading or historical analysis
Notes & Limitations
This documentation reflects surface-level visual analysis only. No compositional testing, hardness measurement, or metallurgical analysis was performed. Image processing was limited to focus stack compositing and tonal normalization; no alterations affecting structural interpretation were applied.
Image Specifications –
Dime (Front & Back) Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Macro lens 100mm macro
Exposure Settings:
ISO: 100
Aperture: f/10
Shutter Speed: 1/160 sec
Focus Stacking: 10 images per side
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights
Stability: Tripod-mounted; timer; macro rail
Processing: Focus stacks blended in Adobe Photoshop; front and back aligned and finished for presentation
Copper Penny – Macro Surface Condition & Component Documentation
Component: Copper penny (U.S. 1-cent coin)
Material: Copper-plated zinc (post-1982) or solid copper (pre-1982)
Application Context: Circulating currency, collector evaluation, and numismatic study
Study Type: Non-destructive visual inspection (macro imaging)
OEM Context: Stellantis-style engineering documentation
Imaging Objective
Document the surface condition, strike integrity, and visible wear characteristics of a copper penny in as-received circulated condition to support numismatic assessment, wear analysis, and archival documentation. Imaging captures obverse/reverse relief, edge detail, and surface features without mechanical handling that could alter condition.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe lighting to manage reflections across metallic surfaces. Multi-frame focus stacking was applied to preserve full depth-of-field across convex relief areas, lettering, rim edges, and minor surface imperfections. Imaging was conducted prior to any cleaning or polishing to preserve original condition and circulation evidence.
Visual Observations
Obverse and reverse surfaces exhibit high points with partial flattening and minor smoothing consistent with circulation wear.
Edge remains uniform, with localized nicks and abrasions along rim contact points.
Surface displays uniform oxidation, patina, and toning consistent with environmental exposure and handling.
Minor scratches, microabrasions, and contact marks present across both faces, predominantly along raised relief areas.
No cracks, delamination, or catastrophic structural deformation observed.
Engineering Interpretation
Observed conditions suggest gradual surface degradation and abrasion consistent with standard circulation rather than acute damage. Patina and oxidation indicate environmental exposure over time. Surface wear may reduce the sharpness of design relief but does not compromise structural integrity. Visual evidence supports further numismatic evaluation or metallurgical analysis if grading, authentication, or compositional verification is required.
Use Case
Images support:
Non-destructive numismatic inspection
Circulation wear and condition assessment
Archival documentation for reference or comparison
Collector grading and historical analysis
Notes & Limitations
This documentation reflects surface-level visual analysis only. No compositional testing, hardness measurement, or metallurgical analysis was performed. Image processing was limited to focus stack compositing and tonal normalization; no alterations affecting structural interpretation were applied.
Image Specifications –
Copper Penny Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Macro lens 100mm macro
Exposure Settings:
ISO: 100
Aperture: f/11
Shutter Speed: 1/160 sec
Focus Stacking: 10 images
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights
Stability: Tripod-mounted; timer; macro rail
Processing: Focus stack blended in Adobe Photoshop; minimal surface correction to retain intentional imperfections
Threaded Needle – Macro Surface Condition & Component Documentation
Component: Threaded needle (sewing or medical application)
Material: Stainless steel needle body with textile fiber thread
Application Context: Stitching, sewing, or precise assembly applications
Study Type: Non-destructive visual inspection (macro imaging)
OEM Context: Stellantis-style engineering documentation
Imaging Objective
Document the surface condition, thread integrity, and needle body defects in as-received condition to support component evaluation, serviceability assessment, and quality review. Imaging captures thread shredding, needle pitting, and surface irregularities without mechanical manipulation that could alter original condition.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe lighting to minimize specular reflections on metallic surfaces and fibers. Multi-frame focus stacking was applied to preserve full depth-of-field across the needle shaft, threaded sections, and fiber texture. Imaging was conducted prior to cleaning or manipulation to maintain original condition and evidence of wear or manufacturing defects.
Visual Observations
Needle body exhibits localized pitting and surface imperfections along the shaft, with minor scratches consistent with handling or operational use.
Thread shows shredding, fraying, and partial separation of fiber strands along threaded sections, indicative of stress or wear.
Thread remains largely attached to the needle but exhibits reduced tensile integrity in high-wear areas.
Tip geometry remains largely intact; minor rounding observed on points consistent with operational contact.
No catastrophic bending, cracking, or complete thread failure observed.
Engineering Interpretation
Observed conditions suggest operational wear and gradual degradation of the thread rather than acute mechanical failure. Pitting on the needle body may result from environmental exposure, material inconsistencies, or repeated contact stresses. Thread fraying indicates potential tensile weakening, which may affect stitching quality or precision application. Visual evidence supports further functional testing or replacement evaluation if performance degradation is suspected.
Use Case
Images support:
Non-destructive component inspection
Thread and needle wear assessment
Quality assurance documentation
Manufacturing defect or serviceability review
Notes & Limitations
This documentation reflects surface-level visual analysis only. No tensile testing, metallurgical composition analysis, or microscopic fiber analysis was performed. Image processing was limited to focus stack compositing and tonal normalization; no alterations affecting structural interpretation were applied.
Image Specifications –
Threaded Needle Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Macro lens 100mm macro
Exposure Settings:
ISO: 100
Aperture: f/16 (to maximize depth of field along the needle and thread)
Shutter Speed: 1/125 sec
Focus Stacking: 18 images
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights. Controlled diffused light with intentional light burst highlighting the needle eye
Stability: Tripod-mounted; timer; macro rail
Processing: Focus stack blended in Adobe Photoshop; light burst emphasized without compromising detail
Rolled Hem Sewing Presser Foot – Macro Surface Condition & Component Documentation
Component: Rolled hem sewing presser foot
Material: Stainless steel with nickel or chrome plating
Application Context: Sewing machine attachment for producing precise rolled hems in fabric
Study Type: Non-destructive visual inspection (macro imaging)
OEM Context: Stellantis-style engineering documentation
Imaging Objective
Document the surface condition, attachment integrity, and wear characteristics of a rolled hem presser foot in as-received condition to support component evaluation, serviceability assessment, and quality inspection. Imaging captures contact surfaces, guide channels, and plated finish without mechanical manipulation that could alter original condition.
Imaging Methodology
High-resolution macro photography was performed using controlled, diffused strobe lighting to manage reflections on metallic surfaces. Multi-frame focus stacking was applied to preserve full depth-of-field across the foot base, guide slot, and heel surface. Imaging was conducted prior to cleaning or mechanical handling to preserve original condition and evidence of use or wear.
Visual Observations
Base and guide surfaces exhibit minor wear along fabric contact areas, consistent with operational use.
Plated finish remains largely intact with localized scratches and slight dulling of high-contact zones.
Screw threads and attachment points are intact with minimal coating loss; no stripped threads observed.
Guide channel shows minor micro-abrasions consistent with fabric friction during hemming operations.
No structural deformation, cracks, or catastrophic material failure observed.
Engineering Interpretation
Observed conditions suggest gradual surface wear consistent with standard operational use rather than acute damage. Minor scratches and coating dulling may minimally affect fabric glide and hem precision but do not compromise structural integrity. Visual evidence supports continued use or cleaning-based maintenance; further functional testing may be warranted if hem quality is degraded.
Use Case
Images support:
Non-destructive component inspection
Operational wear assessment
Quality control and serviceability review
Reference for replacement evaluation
Notes & Limitations
This documentation reflects surface-level visual analysis only. No dimensional metrology, hardness testing, or friction analysis was performed. Image processing was limited to focus stack compositing and tonal normalization; no alterations affecting structural interpretation were plied.
Image Specifications –
Sewing Machine Foot Macro Study
Camera: Canon EOS 5D Mark IV
Lens: Macro lens 100mm macro
Exposure Settings:
ISO: 100
Aperture: f/11 (to ensure full depth of field across the foot)
Shutter Speed: 1/160 sec
Focus Stacking: 26 images
Lighting: Macro Photography Flash Diffuser with Speedlite Flash Diffuser Softbox to manage harsh reflections and sculpt highlights. Soft diffused lighting to prevent blowouts while highlighting surface textures and wear
Stability: Tripod-mounted; timer; macro real
Processing: Focus stack blended in Adobe Photoshop; contrast enhanced to reveal surface damage without clipping highlights