Please help me seniors.
When i use Flash Gun, Focus becomes off target. I noticed the focus is not right at the point i focused, but noticed behind the object. I am puzzling why and never come across such experience or knowledge. Mine is EOS 500D with SIGMA 17-50 f2.8 lens. Flash is Shanny SN600C.
I am totally clueless now, how can flash defocus the photo. Without flash, its right on target.
Is it because ASP-C doesn't synchronize with external flash focus? I noticed when i turn camera zoom, flash also auto zoom to the same number, so i am wondering ASP-C have different focal length from lens, could that be the reason?? but that also should be light compensation, should not be focus, right??
Thanks a million.
When i use Flash Gun, Focus becomes off target. I noticed the focus is not right at the point i focused, but noticed behind the object. I am puzzling why and never come across such experience or knowledge. Mine is EOS 500D with SIGMA 17-50 f2.8 lens. Flash is Shanny SN600C.
I am totally clueless now, how can flash defocus the photo. Without flash, its right on target.
Is it because ASP-C doesn't synchronize with external flash focus? I noticed when i turn camera zoom, flash also auto zoom to the same number, so i am wondering ASP-C have different focal length from lens, could that be the reason?? but that also should be light compensation, should not be focus, right??
Thanks a million.