T7i vs 77D for Macro?

I'm considering upgrading from my T4i around Christmas.

80% of what I do is macro, and 80% of that is indoor macro on a home built stacking rig using a Wemacro automated rail.

The two cameras I'm looking at are the T7i and 77D.

Does either of these have an advantage over the other for my intended purpose?

I've watched a few Youtube videos comparing them, but none of them mentions use for macrophotography.

Anyone have a recommendation?

No, I wouldn't think these can add much to macro photography. You aren't really going to use AF, and if you don't need the resolution, then I would fail to see what a newer body could do. You basically have a Rebel version of the 7D now. The only body that could help in the future with almost twice the resolution would be the new 90D. I assume you have all the glass and lighting you need as well.

TeamSpeed wrote in post #18920160
No, I wouldn't think these can add much to macro photography. You aren't really going to use AF, and if you don't need the resolution, then I would fail to see what a newer body could do. You basically have a Rebel version of the 7D now. The only body that could help in the future with almost twice the resolution would be the new 90D. I assume you have all the glass and lighting you need as well.

Actually, for macro, I thought the resolution would be an improvement. I'm using 4x and 10x microscope objectives in addition to my Tokina 100mm macro lens.

Not sure what your anticipated price points are, but a refurbished (by Canon) 80D with two lenses is available for $700, the same as a new 77D. You could sell the lenses that come with the 80D and be ahead of the game. For a comparison of the 77D and 80D see https://www.digitalrev​.com/article/canon77dv​s80d.

See https://shop.usa.canon​.com …ef-s-55-250-is-stm-bundle

Temma wrote in post #18920201
Actually, for macro, I thought the resolution would be an improvement. I'm using 4x and 10x microscope objectives in addition to my Tokina 100mm macro lens.

Not sure if the resolution would be beneficial or not. Do you find yourself cropping quite a bit and then printing fairly large?

If you want more zoom factor, I would just get a set of tubes to add to the macro lens. Far better than digital zoom or any additive items with glass IMO.

If I was making this choice, I would make it a choice between three cameras instead of two. For macro, the Canon RP offers a few useful functions the other two don't.

I don't know if I would recommend it or not, but I would definitely consider it when making this choice.

TeamSpeed wrote in post #18920241
Not sure if the resolution would be beneficial or not. Do you find yourself cropping quite a bit and then printing fairly large?

If you want more zoom factor, I would just get a set of tubes to add to the macro lens. Far better than digital zoom or any additive items with glass IMO.

I frequently have to crop due to stacking induced artifacts.

I already have tubes. They're irrelevant to the objectives anyway, which have to sit on 160mm of M42 tubes.

Then if resolution is going to be important, then the 90D is the cream of the crop bodies.

A 24px sensor isn't going to add that much more over an 18Mpx, so again, I don't see how an upgrade in a body is going to help other than tilt screen, etc.

TeamSpeed wrote in post #18920274
Then if resolution is going to be important, then the 90D is the cream of the crop bodies.

A 24px sensor isn't going to add that much more over an 18Mpx, so again, I don't see how an upgrade in a body is going to help other than tilt screen, etc.

A new 90D is a little out of my price range. A used 80D is a possibility if it has an advantages for my application.

The current highest resolution camera (ignoring the 90D) has only the ability to capture 15% more line-pairs of detail in the entire width/length of the shot (and even, per-millimeter) than your T4i, which any eye could scarcely be able to detect.

Even the 90D will have only about 33% better line-pairs of detail resolution than the T4i.

Then comes the question, "Can your OPTICS support such increased sensor detail resolution, too?!" IOW, you might already be LENS LIMITED, and really need to upgrade your optics before bothering to upgrade sensors!

Most of my macro work has been done with a T2i & a 100mm macro, or a 85mm F/1.8 with full set of extension tubes attached. Have you thought of a used 6D, I've seen them quite affordable lately.

Seems to me the greatest limiting factor isn't as much optics but diffraction limitation: the higher the MPs, the less you can stop down your lens to find sharpness. For quite awhile the main common denominator for maximum sharpness is not reaching diffraction limitation.

LENS DIFFRACTION & PHOTOGRAPHY