📊 Key Specifications – Nikon D810 FX DSLR. ➤ Printed Nikon D810 user's manual. Shutter / Flash Sync Shutter speed range30 s – 1/8000 s + Bulb • X-sync up to1/250 s (1/320 s with reduced output); built-in pop-up flash & i-TTL support.
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