ChackbayGuy Loc: South Louisiana

Recently acquired a D7500 and an FX Sigma 100-400 that I use to shoot air shows (for fun). My D750 and 70-200 was a bit heavy for me after a couple of hours shooting (about to turn 75). Was thinking of buying a DX walk around lens for the D7500, BUT, after reading the "discussions" of having both an FX and DX camera, decided that I should spend more time using my various FX lens combos on the D7500. Here's a few I did walking around in my back yard with the D7500 mated with my FX 24-120 F4 lens. Think now, will stick with all FX lens sets. Enjoy... John

My pond

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More Pond

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Got any bread?

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Baby Moss

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MT Shooter Loc: Montana

An excellent decision! Great cameras DESERVE the best lenses.

rgrenaderphoto Loc: Hollywood, CA

You're not going to loose anything, other than image area, with Fx lenses on a Dx camera. You just won't get full benefits of the lenses image area.

wilsondl2 Loc: Lincoln, Nebraska

What is this? You went to a DX camera to save weight and then you are going to put FX lenses on it. They will add weight defeating your going to the lighter weight camera. Stick with DX lenses for the DX camera. - Dave

Lance Pearson Loc: Viriginia

I have done the opposite on my Nikon D4 fx camera. I use three f 2.8 nikkor pro fx lenses on it, 28-70, 70 or 80-200 and then an f1.4 50mm prime. Sometimes when I want 300mm since I gave the huge 600mm lens away as it was too much work I use my dx 300mm lens to reach out and get birds in flight further away and just crop the uncovered fx sensor outside of the dx image circle away from it. It works quite well since I usually don't need the whole sensor's area for a couple of ducks in flight. example post cropping below.

These birds were forty yards away going away from me...

My d4 with the 200mm lens on it weighs a whopping 7.7 pounds so it is no light weight tho it is a fantastic camera. My casual camera is a sony a7 shooting manually 35 year old canon fd lenses with an adapter so fx to fx in effect...sony is full frame 24 mp sensor and it gives me some very artistic shots and does not weigh so much. Just not a sports camera with the manual focus...

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ChackbayGuy Loc: South Louisiana

Thanks to all for the comments. Did some further testing with my FX 24-120 kit lens from the D750 on the D7500 with all acceptable results for my own requirements (not professional level, my composition talents are not to that level).

Specific to Wilsondl2, my purpose of the D7500 with the Sigma 100-400 FX was light weight for airshow use (from the ground). Was thinking of adding a dx lens for walk around on the D7500, but now think I might look at another prime FX lens.

Sure am enjoying both cameras and relearning and expanding my hobby.... John