Hello, I'm writing from Italy. I would like to buy a very good 180mm macro. I shoot with a Canopn 5DS and I've read that Canon doesn't reccomend the 180L on a 50MP camera.
Does anyone have a first hand experience with this combo (5DS or 5DSr)?
I shoot details in ancient paintings so I need sharpness even on the edges.
I usually shoot at f8/f9.
I have experience with the Canon 100 usm (not the L); it's an old lens like the 180, but I'm satisfued with the results. If the 180 macro is like the 100, it will be fine fine for me.
i know that the Sigma 180 os 2.8 is better for sharpness and resolutiin but it's really heavy
The combination of the EOS 5DS or 5DS R and EF 180mm f/3.5L Macro USM works very well, but I would only recommend this setup if you are using a tripod.
For the OP's stated application, he will certainly be using a tripod. When photographing paintings, both the perpendicularity of the line of sight and the angle of incidence of the lighting must be carefully adjusted to avoid weird reflections off of the paint. The brushstrokes of oil paint do not result in a planar surface, and getting the lighting right can be very tricky.