Some reviews mention sun flare as an issue with this lens. I wonder if the owners here would agree or disagree that this is a significant issue?
485028
Lens flare is a problem with any super wide zoom. Wide angle lenses are the hardest lenses to use in my opinion, and this is something you have to learn to avoid, or learn to use creatively (lens flare can be used creatively). Make sure to use the lens hood and make sure to look at the edges of your viewfinder for any bright light before composing your photograph.
485029
There is some green flare with this lens, but I don't think it's significantly more than other lenses of this focal length range. It's just something that goes with the territory; something you learn to work around. I wouldn't discount getting this lens because of it. I would add, however, that the flare Is much more pronounced if you use a protective UV or skylight filter - I'd definitely recommend against using a protective filter - especially when shooting backlighting.
485030
In my experience this is definitely an issue. Very pronounced sun flares to the extent I am considering returning the lens. It is not always possible to "be aware of your positioning" to resolve the problem. Yes, you can take a picture of something else I suppose and turn your back on your intended capture if the sun is anywhere in the sky. I have used the lens at all times of day and it makes no difference.
485031
I would not consider it a issue. But use the provided hood and be aware of your positioning, or use a polarizer, or a ND filter. I have not had any problems with sun flare with mine.
1564625
I used this lens for one year until yesterday without any problems. Just yesterday I am experiencing the same issue: quite focus hunting when zoomed out at 70+ and when it stops it is not on focus! Any idea?
246685
After nearly 2 years with my copy it's fine too. I do have a pretty large speck of dust in the front element but it doesn't affect anything. You have to keep in mind that dust in the front of the lens does not affect image quality so it's a non-issue. Certainly should not be a factor in the buying process as the lens has some amazing strengths.
606482
My shots are mostly very sharp, however, occasionally, this lens will just produce a clunker. However, I'm not sure its any worse than with some of the "L" series lenses that I've used, so I put it down to technology failure. I normally would attribute it to me, but there are times when I take a picture in noon daylight, standing still and its out of focus. That's almost impossible if you think about it.
1800884
I've had mine for approximately three years without any problems. It's a fantastic lens!
447638
I had heard about the focus problems but we have had no problems with it what so ever. At wide open apertures, the depth of field is extremely tight, so I am guessing that some people who have less photographic experience were the ones complaining, because even at those apertures we are producing tack sharp images, on auto-focus or in manual on our Canon cameras, a T5i and a 60D. Sigma has released an updated version of the 50mm in their new "Art" lineup, so if you still have concerns, save up for that one. I've played with it at our local camera store and it is beautiful!
1331900
Not sure I can be of much help.....I haven't tested all of the "elements" that you listed as threats to the lens - really haven't experienced extreme conditions under rain or sea water spray - some, but nothing severe. Living in Oklahoma I know my lens is exposed to dust. All I can say is that there is no apparent affect on my lens or camera to this point...but then both are still relatively new. I trust Pentax to perform as promised. My K30 is my "fourth generation" of Pentax - Spotmatic, ME Super, Super Program, K30.
80118
I have never had a problem with lens flare, but I have always used the included lens hood too.
2270632
With the lens hood on, under normal conditions, I have never had a problem with lens flare. If you're shooting directly into a light source, of course you're going to have some len's flare. This lens is of very high quality. It's one of Nikon's top lenses. I am a commercial/corporate/editorial photographer and depend on this lens every day.
585645
I think you are right here. I don't believe it is a lens problem as I have see this problem across a couple of lens. I did two things that seem to make a different, the first was I completely reset all the camera setting and second thing I did was up grade the camera fireware from version 1.0. 4. to version 1.0. 9. This seems to have made a difference.
575221
I agree and have noticed that as well. I bought the older version and have been pleased with it. I have also not read complaints about the newer version. It may be as simple as supply and demand or something we are not aware of. You might check review sites just to make sure the version 2 is well rated and then go for it if it's cheaper. The 20MM has been a great lens, I have received compliments about my photo's and 9 times out of 10, it's taken with the 20mm.
287473
I haven't tried it in bright sunlight, yet. Good question though, as I hadn't thought about the lack of a normal viewfinder. Might hold on to my old camera just in case, it took great daytime shots but was poor in low light situations.
955650
I don't believe this lens is weather sealed if that is what you are asking?? Personally it wouldn't matter to me if it was, because I tend to avoid the weather elements as much as possible.
437469
I use the view finder most of the time, no problem in the sun.. the lens should have sun shade.
775020
It's a great lens as long as it's not too dark!! It's fabulous but you definitely need light-- I take beach shots of moving kids at sundown but it's definitely at it's best at the beginning of sundown -- make sure it's not too dark!! It should work really well otherwise. I really think this is a great lens.......especially for action shots!
616489
This is one of the best lenses I own. Of course it is brand new. I haven't any problem yet so I can't answer about warranty handling,
811132
I have to return my lens. Used twice on a shoot and serious focusing issues both times. I will not pass judgment, as I plan to return to Tamron under their warranty and I bought this upon recommendation from fellow fans of this particular lens. I shoot Canon and this was the first time I purchased outside of their line...