steve_stoneblossom Loc: Rhode Island, USA

pmackd, I'm curious. Exif says no flash, is this true?

pmackd Loc: Alameda CA

Nope. I don't shoot with the D750 and 70-300 much anymore. Tried it once on a whale watch trip in Hawaii when I could just as well have used the D7100 and was sorry. I thought we'd get close up to the whales or that they would approach us but it didn't happen. Anyway here's one nice shot I got.

Of course with the D750 vs D7100 you would be comparing only 10 Mp on the D750 sensor that has an AA filter with 24 Mp on the D7100 that doesn't have one.

(Download)

pmackd Loc: Alameda CA

Absolutely, no flash. ISO 200, 1/1000 sec, f5.6, 240mm

steve_stoneblossom Loc: Rhode Island, USA

thx

CraigFair Loc: Santa Maria, CA.

Those are the perfect EXIF readings for a Hummingbird.
Really nice work. I shot mine at 1/60 sec to get the Wing Motions.
Craig

pmackd Loc: Alameda CA

Sorry for possible confusion. This is with the D750.

CraigFair Loc: Santa Maria, CA.

""Of course with the D750 vs D7100 you would be comparing only 10 Mp on the D750 sensor that has an AA filter with 24 Mp on the D7100 that doesn't have one"".
I would swear you have the D750 and D7100 swapped in the sentence???
The D750 doesn't have the AA Filter and it shoots the full 24MP with the FX 70-300mm Lens.
Craig

steve_stoneblossom Loc: Rhode Island, USA

7100 does not have low pass filter. 750 does.

Cropping 24mp image from 750 to DX size yields 10mp image.

amfoto1 Loc: San Jose, Calif. USA

Huh? You have two approx. $1500 (right now) cameras... i.e., $3000 worth of cameras. 5D Mark III currently costs $2500.

But, be careful. The OP's Nikon D810 vs D7200 doesn't equate to Canon format comparisons for a number of reasons. If you crop a 36MP FX image down to the size of the DX camera's image, you'll end up with approx. a 15.4MP image. That's not bad, compared to the 24MP DX camera. The D810 has a DX mode, where it crops to APS-C in-camera, which also increases the camera's frame rate from 5 fps to 6 fps (or up to 7 fps with grip and the right batteries).

No Canon FF model has an in-camera crop mode (except for the 50MP 5DS/5DS-R, which aren't really relevant here for a number of reasons). So, you end up cropping the image in post-production. And, what's left by the time you crop a 5DIII's 22MP image down to APS-C size is about 8.36MP... compared to the 20MP of the 7DII. Big difference!

That cropping won't increase the FF camera's frame rate in any way, either. So it's still 6 fps versus the 7DII's 10 fps.

In comparison, D7200 shoots at 6 fps too, but I think I saw that if it's set to 12 bit RAW it can increase to 7 fps.

Another consideration when shooting bursts at high speed is the image buffer... i.e. how many RAW files can you take sequentially before the camera needs to pause to clear its buffer and how long it takes to clear.

According to www.imaging-resource.com website's testing, the 22MP 5D Mark III can shoot 18 RAW and takes 4 seconds to clear. The 36MP D810 apparently has a larger memory that allows it to buffer 23 RAW, but taking 10 seconds to clear. In DX mode, it can buffer 57 RAW and will clear them in 7 seconds. In comparison the 24MP D7200 captures 18 RAW files and takes 5 seconds to clear (which I undestand is a significant improvement over the D7100). And the 20MP 7D Mark II managed 26 RAWs and took 8 seconds to clear them. Keep in mind that the 7DII's considerably higher 10 fps, versus the 6 or 7 fps of the other models, will likely fill the buffer more rapidly. You can shoot a 2.6 second burst with 7DII... and 3.8 second burst with 5DIII... 3 second burst with D7200... 8 to 9.5 second burst with D810.

While the smaller pixel sites of an APS-C camera reduce fine detail capture to some extent, off-setting some of the overall increased resolution of the sensor, I'll still stick with crop sensor Canon cameras for wildlife, including birds on the wing or on a branch. I'd rather have an 18-20MP image with slightly less fine detail than an 8.4MP crop from a 22MP full frame image. I'd rather handhold my 300/4L than my 500/4L!

The 7DII also uses a different 65-point, all cross-type AF system, driven by it's own discrete chip (separate from the dual image processors... similar to 1D-series cameras). That makes it faster and better tracking moving subjects, compared to the 5DIII, which really is no slouch at all with it's 61-point (up to 41 cross-type) AF that shares the camera's single processor with image handling and other functions. I have no idea if the D810 have similar or different AF systems.

So, if you're shooting Nikon, it may make sense to use the FX camera in DX mode, with only moderate loss of resolution that's likely offset by the larger pixel sites of the FX model, when compared to a DX camera. There isn't much difference in frame rate, and might even offer an improvement in image buffering.

But the same doesn't hold true with Canon... There are a number of reasons that the APS-C 7DII will often be the better choice for wildlife and birds than the full frame 5DIII.

CraigFair Loc: Santa Maria, CA.

I just figured the Low Pass Filter would be left out of the D750 like all the D8xx's but they didn't.
The D7100 and D5300, your correct, don't.
The 70-300mm Lenses are all FX and therefore a full 24MP in the Full Frame Cameras.
Craig

robertjerl Loc: Corona, California

I bought the 6D in Nov 2013 for $2200 with the 24-105L. I had just gotten a check from VA for back payments on my 10% disability from Agent Orange.
I bought the 7DII in Aug 2015, body only for $1500 after a pension fund sent me a check for money owed when an audit found I was being underpaid.
I didn't consider trading in the 6D and get the 5DIII because I really like the 6D for everything except my BIF and the 5DIII is a step (maybe a half step) backwards from the 6D tech wise. The 7DII is a step forward tech wise.
Now that I have used both I have decided I would like a FF with the newer tech and AF of the 7DII and an upgraded sensor such as keeps getting mentioned in rumors of new products coming.
But such doesn't exist yet so I will wait and maybe with more experience I will start getting better IQ from the 7DII. I have gotten great IQ on many occasions, but it is erratic, experience will undoubtedly improve that.
Just like my efforts at BIF with the 7DII taught me enough that when I got chances at BIF with the 6D recently I did much better than before and got several really good shots. Learning how to really use the gimbal head had a lot to do with that.
If and when my dream camera comes out I may very well stick with what I have due to money issues.

Bobspez Loc: Southern NJ, USA

Of course not. But you can get a better shot with a 300mm lens on a CX sensor and an 810mm equivalent focal length than you will on a DX or FF sensor.
Bob

JD750 Loc: SoCal

Craig where did you get the D750 without the AA filter? I want one of those.

CraigFair Loc: Santa Maria, CA.

Read the thread this has already been addressed 3 times.
Craig

JD750 Loc: SoCal

Believe what you want.

The D750 That I use has the AA filter. You want AA filter removed that is the D800E/810E not the D750.

Of course maybe I could get a tiny spatula and scrape it off?

On UHH you get
Expert advice
Conflicting opinions
Completely wrong answers

It's up to the reader to sort it out.