Boxing photography

I currently have a d3300 with 2 kit lenses 18-55 and 55-200 and a 50mm 1.8g

I am considering buying a tamron 24-70 2.8 or the 28-75 2.8

I'm planning to upgrade my Nikon body to either d500 or d750 I know ones dx and ones fx

My question is which will be best for what I am looking to do

The d500 has the 10fps which would be great but will the dx be good in the low light of a boxing show or would the fx d750 be better even though it's less fps and a smaller buffer

Obviously I can't use a flash due to the nature of the sport and the high shutter speed

I read that the aperature goes down a stop with a dx camera compared to the fx so a 1.8 would be more of a 2.8 on a dx body obviously affecting the amount of light if lets in

Any advice would be much appreciated

Regards
Tommy

Hello Tommy and welcome....................................................

thanks jh photo

Theghost1985 said:

I read that the aperature goes down a stop with a dx camera compared to the fx so a 1.8 would be more of a 2.8 on a dx body obviously affecting the amount of light if lets in

Click to expand...

Welcome aboard. Enjoy the ride.

The aperture does not go down a stop with dx cameras. See this link Does the aperture (f-stop) change on DX cameras? « Nikon Rumors Forum

Welcome to the forum Tommy. I haven't seen either camera, let alone used one, so I can't be of any help for your question. Others will chime in, I'm sure, to add to Bikerbrent's link.