lamiaceae Loc: San Luis Obispo County, CA

So you shoot JPGs, no! The D7100 is a fine camera already, if you want a D750, get one but it is an FX camera and is intended for FX lenses.

dcampbell52 Loc: Clearwater Fl

I also have a Nikon D7100 and I made an effort to ONLY buy FX lenses for it.. I now have purchased a Nikon D610 (full frame) to go with it. This allows me to easily use a wide to normal (Nikkor 35mm or Nikkor 50mm lens) on my D610 with no conversion issues) and I use my Nikkor 80-400mm (also a full frame lens) on my D7100 crop sensor. With the crop, the professional 80-400mm gives images similar to a 120-600mm lens and I get great results on both. This also gives me the ability to have 2 cameras/lenses available at all times.

camerapapi Loc: Miami, Fl.

My question to you, is the D7100 failing to do what you want and need in your photography? Your answer should tell others if indeed you need a new camera.
Consider that if you are using mostly DX lenses a full frame camera will not work well with them. Your 50mm and 75-300 will work but the other lenses you have will not.
A "full frame camera" implies that you will need other lenses unless 50mm and 75-300 are all you need.
If you ask me I am going to say save your money. I believe you have already all you need.

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

Here is your deal. AND, your getting the 24-120 for free. Best deal now available on a D750 and your getting a great lens to start you full frame system.
https://www.bhphotovideo.com/c/product/1082604-REG/nikon_d750_dslr_camera_with.html?sts=pi-ps

starlifter Loc: Towson, MD

I have had a d7200 since they first came out and love it , it also has 2 card slots which is really handy. I use my second slot most of the time as a backup. As regards the teleconvertor I would skip, I have one and hardly use it. I got a sigma 150-600C on amazon for$ 989 and love it too. Alot of bang for the buck. Good luck.
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SusanFromVermont Loc: Southwest corner of Vermont

Having wi-fi is a convenience, but not necessary. If you have a device that will read memory cards and transmit images, why would you need it? Spend time in the field taking pictures, then when you take a break, send pictures!

That said, the main concern should be the camera itself. If all your lenses are DX, you will not get the best use of a full frame camera. Yes, it can be used in DX mode. But the image quality will be limited by the quality of the lens. Your images may be a bit better than on the D7100, though, because of better resolution and low light capability of the FX camera. If you have any FX lenses, and/or buy an FX camera bundled with an FX lens, that might work out well for you.

If you decide to keep the D7100, but see an FX camera in your future, a good plan would be to start buying a few good FX lenses. They work very well on DX cameras, just have to keep the crop factor in mind. Your images will always be the focal length at which they were taken, but the image will essentially be cropped in camera because only the central part of the FX lens will be used. This is where people get the idea that they are getting more "reach", when actually all they are getting is the same image but covering more of the sensor. 300mm is 300mm regardless of which camera is used.

Just as images taken with DX lenses on an FX camera are limited by the properties of the lens, it is also true that FX lenses on a DX camera will be limited by the properties of the camera. But the same principle applies - images will be a bit better than the same image taken with a DX lens on a DX camera. Sometimes more or less noticeable than others. But I can definitely attest to the fact that the same FX lens when used on an FX camera gives noticeably better images than when used on a DX camera!

When you decide which way to go, then buy the best you can afford. It will satisfy you longer and give you a system to grow into. Do some research, read specifications, narrow it down...

amfoto1 Loc: San Jose, Calif. USA

You'll need to replace at least three of your lenses, if you get an FX camera. Your 18-140, 17-30 and 11-16mm are DX lenses. Designed for use on DX cameras like D7100 and D7200. Probably your 50mm and 75-300mm are FX lenses that would be usable on D750 FX camera, as would be the 300mm and teleconverter you are planning to buy.

Yes, you can USE the DX lenses on the FX camera. HOWEVER, when you do that the camera will automatically crop images to DX size. With a 24MP D750, what's left after cropping is under 10MP. You currently are shooting 24MP DX size images with your D7100, so there would be a big drop in image quality using DX lenses on that FX camera, versus what you have now.

So it's really pretty much a waste of money to buy an FX cameras and then just use DX lenses on it. You're better off using a DX lens on a DX camera, in all but the most extreme cases (such as 46MP D850). In other words, if you "upgrade" to an FX camera, you also need to plan to upgrade to FX lenses, to make that camera upgrade worthwhile. And you should anticipate needing bigger, heavier, more expensive lenses, too... For example, instead of the 300mm f/4 lens and teleconverter you're planning to buy to use on your D7100... in order to have the same "telephoto reach" and speed with any FX camera, you're going to need to get a 500mm f/4 and teleconverter instead. Compare for yourself

By the way, have you considered the Nikkor 200-500mm f/5.6 zoom instead of the 300mm + 1.4X?

There aren't a whole lot of differences between D7100 and D7200. The newer model has bigger buffer, slightly improved AF system (low light, tracking movement), and slightly improved 24MP sensor (slightly wider DR, a bit higher ISO capable). Depending upon what you shoot and how you shoot it, you may not see any difference.

http://cameradecision.com/compare/Nikon-D7100-vs-Nikon-D7200
https://www.imaging-resource.com/cameras/nikon/d7100/vs/nikon/d7200/
https://www.dpreview.com/forums/thread/3977340

Yes, the D7200 has built in WiFi. I would recommend you investigate what people actually using it think about that feature. Typically there's pretty limited range.

If the only complaint about your D7100 is ability to transfer images wirelessly, maybe get a Camranger to use with the camera instead.... problem solved. A Camranger has about 3X the range of standard WiFi, as well as much greater reliability. While far better than built in WiFi or WiFi adapters, Camreanger's 150 foot range is not as much range as Wireless File Transfer modules available from Nikon themselves, but those are a whole lot more expensive than Camranger (and I don't know if Nikon even makes one for D7100... this is NOT the same as the WiFi adapter you tried... It's a much more powerful wireless network adapter).

BTW, if you are sending the images to your wife's phone or tablet computer, the memory cards of those will fill up FAST, when 24MP images are sent to them.

P.S. While it really makes sense to buy FX lenses for FX cameras.... But it doesn't really make sense to only buy FX lenses for use on DX cameras. I've been using full frame and crop sensor DSLRs side by side for years. While a lot of my lenses are full frame capable and usable on both, I also have some crop-only lenses. Those offer smaller size, lighter weight and lower cost... and is some cases even better performance than similar full frame cameras. Mostly wide angle to short telephoto/macro/portrait.... crop only lenses can be advantageous. Anyone who has a crop camera, but refuses to consider and use crop lenses and insists on only buying full frame capable lenses, is just short-changing themselves. They're probalby spending more money, carrying around more weight than necessary... and will be unable to do some things.

ToBoldlyGo Loc: London U.K.

Isn't there a WiFi sd card? If that works, no need to buy a new camera.

Pegasus Loc: Texas Gulf Coast

I don't follow the logic here. The D7100 and the D750 both have 24mp sensors. One is DX and the other is FX. If the OP uses a DX lens on the D750, he will have to use DX mode which means he will reduce the image on the FX sensor to match the size of a DX sensor. That means the DX image on the D750 will not use 24mp, it will use about half that amount? I haven't time to do the math or look it up, but someone can fill in. On the other hand the D7100 will still be using all its 24MP for that same size image. So, I don't think the OP would get better resolution using a DX lens on a D750 compared to using the same lens on the D7100.

drmike99 Loc: Fairfield Connecticut

There is. I have one and never use it anymore because its performance was so erratic. Called EyeFi I believe.

ecurb1105

Go with the D7200 unless you want the D500.

SusanFromVermont Loc: Southwest corner of Vermont

Perhaps I should not have said better resolution, but the other capabilities of the FX camera would enhance the image in other ways, depending on shooting conditions. My main thought was that each combination of DX and FX will be limited by the properties of the DX element. And this is with the assumption that FX is better than DX, which with some of those cameras and lenses they are very comparable! The line between DX and FX is getting more and more blurry all the time...

amfoto1 Loc: San Jose, Calif. USA

Less than half.

A Nikon DX sensor is approx. 42% the size of a Nikon FX sensor.

So a 24MP FX image that's cropped to DX size will end up about 10MP.



No, the images will not be "better" with the FX camera.

We actually field tested it some time ago.... same lens, same subject, everything on a tripod, manual focus, mirror lockup, etc... in that case an 18MP crop camera versus an image cropped to the exact same dimensions from a 22MP full frame camera.... The crop camera's images won out quite easily.

It would be even more dramatically in favor of the cropper in a case where both cameras are 24MP, as they are here. Yes, the FX D750 will be higher ISO capable.... but if you crop it's images to DX size, they will lose out in every other respect to the D7100's DX images.

The only way the FX camera's images can be truly and consistently superior is if the camera is used with FX lenses. By replacing any DX lenses... and dealing with the additional size, weight and cost of the FX lenses.

barryb Loc: Kansas

I've loved my Fx camera, and the extra pixels, but to be honest, the wifi with snap bridge is not that impressive at times. I don't know without looking it up which lenses are Fx, but most will have a Dx on it somewhere on the lens. good luck shooting

drklrd Loc: Cincinnati Ohio

The D7500 has no second drive slot. I use the second slot as a backup for shooting as a pro because I have had SD cards fail. I would hate to have to reshoot a one time event because you cannot reshoot a one time event. I also keep my files on two external drives. One to deliver to the studio weekly and a second external drive to back that drive up as I have had a second external drive fail at least twice. Only big difference between the two bodies is the screen and it only flips up along with ISO goes to 25600 (D7200) and one more ISO up (51200) for the D7500. At which time above those numbers both cameras shoot B&W at higher ISO. and the D7500 is not 24 mpx but from what I remember reading it is 20mpx.