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08-10-2014, 03:13 PM   #46
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Location: Bellingham, WA.
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QuoteOriginally posted by scole Quote
So I got my copy on Friday and Saturday took it out for my first use. I bought the lens pretty much for night landscape/astrophotography and it's going to replace my older Sigma 17-70mm F2.8-4 in those situations. A few thoughts-
  • Like others have mentioned, it's heavy
  • Focus motor is QUIET. You won't hear much to verify focus so keep that in mind.
  • The focus ring is firm with just enough resistance. In other words, it's not sloppy & excessively free turning. This was great since there's a narrow range for focusing wide open.
  • The f1.9 really lets in the light so even it you're stopped down to f2.8, using Live View to focus at night was MUCH easier than with my Sigma 17-70 at the same f2.8

I've seen some other observations of lens flare when wide open. I experienced this as well. Here are a couple shots:

6s @ f2.8, ISO800, 18mm

This is a huge improvement over my Sigma 17-70. Due to the "supermoon", I wasn't able to take any good shots of the night sky & stars so that will have to wait for the near future. All in all, I'm really impressed with the lens so far.

8s @ f4, ISO800, 28mm

Neither image has been processed. Both are just "save as" straight from the RAW DNGs. I'm a little bummed about the lens flare but oh well. If I recomposed, minus the actual moon, the flare disappeared. The last thing I'll note is how sharp it is! This is a 100% crop from the right center edge of one of the previous photos:
Great shots and lens breakdown Scott.


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