Technician's Advice: How to Avoid Losing Money on Used Marketplaces

Buying pre-owned camera gear directly from previous owners is a great way to save 40–60% compared to buying brand-new retail kits. However, half of the repair jobs brought to my bench involve buyers who overlooked critical warning signs during initial inspection.

Here is a concise step-by-step strategy for evaluating camera bodies when meeting a seller.

3-Step Inspection Routine for In-Person Purchases

Step 1: Prior to the Meeting (Verify Original Files Remotely)

• Ask the seller to take a fresh photo right now and send it as an uncompressed RAW (.NEF) or straight-out-of-camera JPEG file.
• Upload this file to our online service to verify the internal serial number and actual ShutterCount before travelling to meet the seller!

Step 2: During the Meeting (Physical & Optical Inspection)

1. Insert your own verified SD memory card. Take 3 test shots: one wide open, one stopped down to f/16, and one short burst in continuous shooting mode.
2. Inspect the body under bright light: check lens mount bayonet friction wear, rubber grip seam alignment, and screw head condition.

Step 3: Immediate On-Site Online EXIF Screening

Using your smartphone and an OTG card reader, run the freshly taken photo through our tool directly in front of the seller. If actuations and serial numbers match the listing claims — you can complete the purchase with confidence!

Risk Assessment Checklist During Evaluation

Observation During Meeting	Risk Level Assessment	Recommended Action
Seller refuses to send uncompressed RAW/NEF file	High (Hiding actual shutter count)	Walk away from transaction
EXIF Serial Number matches physical bottom plate	Low / Safe	Proceed if shutter count is acceptable
Stripped screws near battery door casing	Medium (Prior unrecorded repair)	Request a 20-30% price discount