#Canon EOS 5D Mark IV

I've been trying to capture some stunning astrophotography shots with my Canon EOS 5D Mark IV, but no matter how I adjust the exposure compensation, I find myself consistently underexposing my images when using the Tamron 24-70mm f/2.8-4 Di VC USD lens in low-light conditions. I've checked the lens's aperture and shutter speed, and they seem to be within the optimal range for capturing low-light shots. I've also tried using the lens's built-in image stabilization feature, but it doesn't seem to be making a significant difference. Has anyone else experienced this issue with this particular lens and camera combination? I'd love to hear about any workarounds or solutions you've found to address this problem.

I've been using the Nikon D850 for a while now, and I have to say, it's been a game changer for my studio photography work. The 45.7 megapixel sensor, combined with the excellent autofocus system, has allowed me to capture some truly stunning images. However, I recently had the chance to try out the Canon EOS 5D Mark IV, and I was impressed by its ability to handle high ISOs with minimal noise. The Canon also has a more intuitive interface, in my opinion, with a more responsive touchscreen. But when it comes to dynamic range, I think the Nikon D850 still has the edge. I've noticed that the Nikon is able to capture a wider range of tones, from the brightest highlights to the darkest shadows, without losing any detail. The Canon, on the other hand, tends to struggle a bit more with blown out highlights. I've also noticed that the Nikon's autofocus system is more accurate, especially when using the 24-70mm f/2.8 lens. So, for studio photography, I think the Nikon D850 is still the better choice. But I'd love to hear from others - have any of you had experience with both of these cameras? Which one do you prefer, and why?