The Nikon D750 in a demo of burst mode.
See the end of this description below to see WHY I made and posted this video.
The SDHC card is a 32G Sandisk "Extreme Pro" 95MB/s, Class 10, U3.
This video was created and uploaded by myself . in my lunch time using a phone, so sorry about the quality of the "cinematography" and sound.
However despite the visual and aural quality, I think it demonstrates my point.
Name the Nikon D750 is capable of continuous burst of 100 frames, with 14 bit lossless compressed NEF (RAW) files.
That is the highest quality available on the camera.
Just for kicks I also show 12 bit lossless compressed, 1.2x crop 12 bit lossless compressed, and 1.2x crop 14 bit lossless compressed.
400 frames, shot in 4 CONTINUOUS 100 frame bursts.
Looking at the video afterwards it looks like we got the following approximate lengths in time and initial burst sizes:
14 bit FX 36 seconds 100 frames, initial full speed burst 4 secs, 16 frames
12 bit FX 30 seconds 100 frames, initial full speed burst 5 secs, 22 frames
12 bit 1.2x crop 31 seconds 100 frames, initial full speed burst 8 secs,37 frames
14 bit 1.2x crop 28 seconds 100 frames, initial full speed burst 5 secs, 24 frames
The above times and frame rates are approximate, taken by eye and ear , I don't think I have the tools to do a better analysis, but I think they're pretty close within half a sec and a frame or two.
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Since we know the D810 has the capability to shovel 36MP images onto it's card as long as there is room on the card and power in the battery it should not be a surprise that the D750 with smaller 24MP files and basically the same chipset/data pipeline (EXPEED4) can achieve similar performance.
Note that in all cases, the intial burst is longer than the estimate when you half press the shutter.
E.g. In 14bit FX the top LCD indicated 12 frames in the buffer but we got about 18 shots before slowing down.
No it's not the D4 or the D810, but with a fast card you can get an intial burst of at full speed, eg. 6-6.5 frames per second and then continue at 2-3 fps continuously without pause until Nikon's software decides you've had enough fun.
The 100 frame limit is arbitrary and imposed by Nikon, presumably to protect sales at of the D810 and D4.
There have been a few comments asking what the point of this video is, or questioning the validity.
The point was this www.dpreview.com/forums/threa... DPR thread, in particular as a reply to this particular post: www.dpreview.com/forums/post/... .
8 дек 2014