Hey guys. I have a canon 80d. I just bought a 70-200 f2.8 iii & a canon 100-400 ii. I also have a 1.4x III. I own a spyderlenscal & I'd like to make sure it's sharp with these two lenses but I don't think I have enough room to get far enough away from the target. Can I shoot it close & still get the results I need to adjust?