Nikkor vs. Tamron vs. Sigma lenses | The Photography Forum
2012年10月9日 · Both those Tamron and Sigma lenses are highly rated... Both nikon's are better lenses. However, The Sigma 17-50mm f/2.8 EX DC OS HSM @ $600 is an AMAZING lens …
Sigma, Tamron, or Tokina: Which and why? | The Photography …
2005年7月8日 · Sigma has traditionally made some of the worst quality lenses, really bad back focusing and just not very sharp... yet they also made the 18-50 HSM macro, which is so …
Sigma Art lenses with Sony E mount vs Sony G Master lenses
2019年4月16日 · The way they handle auto-focus might be different. The latest G Master 24mm F1.4 is much smaller than the Sigma equivalent, but the Sigma has a mechanically coupled …
full time manual focus on sigma lenses. - The Photography Forum
2014年3月23日 · On some lens you cannot manually adjust the focus ring when the lens is set to Auto (AF) mode. When full time MF is ON you can adjust manually the focus ring in both AF …
Old Sigma lenses on Canon digital bodies - The Photography Forum
2009年10月4日 · I recently got a Canon 20D from eBay, and bought new a lovely 50mm 1.8. I also acquired/borrowed two EF fitting Sigma lenses which date back to film EOS …
Sigma -> Quantaray lenses. Any good? - The Photography Forum
2006年4月14日 · Sigma, who i'm sure you've heard of, made/makes a series of lenses and filters for www.ritzcamera.com called Quantaray. I currently use a 28-80 nikon and a 70-300 nikon. I …
Sigma lens on a canon camera | The Photography Forum
2020年5月8日 · Sigma makes the same lens in multiple mount types. It's the same lens, just with a different mount. They also make both crop and fullframe lenses, however for canon they only …
Battle of the superzooms! (a single vacation lens) Sigma 18-250 vs ...
2014年1月8日 · If i were you, i would just stick with a nice 50mm nikon prime. It is light and small with picture quality rivalling the very expensive zoom lenses. Here are the reviews of the …
Making Sirui Lenses - The Photography Forum
2016年10月21日 · Here is a video showing the making of Sigma Lenses. I don't know how old the actual photography is (I assume it is "current") but it is interesting to see that assembly seems …
Which 70-300mm? Sigma Or Tamron | The Photography Forum
2012年11月10日 · The Sigma APO version is more expensive than the non-APO version and is supposed to be better and more expensive than the Tamron. But the Tamron is cheaper than …