Search results for 'uv filter' - page 151
Pentax 50-200 WR- user experience
I'm pretty sure the lenses both have a 49mm filter diameter. The non-WR is definitely 52mm. I didn't realise there was any difference except for the metal mount. You have surprised me. Makes you wonder. Both have metal mounts.
Posted by Gamka on 03/03/2014 - 10:02
Used or second hand
I have lost count on the things I have sold and then, whether it be months or years later ended up buying the same lens again. Your Sigma 50mm f1.4 is one of them, I have owned 2, sold them both each time as it's to big and heavy with a stupid filter thread size for a 50mm lens, this goes for the...
Posted by MattyH on 17/03/2014 - 11:24
A-M Switch on Helios and other lenses
I suppose you could just cut it off with a Dremel in the closed down position or remove it and force the pin into the closed down position with some insulation stripped from some electric wire. To save all that bother.... It's better to reverse a lens for macro use, with a reverse adapter. Pr...
Posted by Algernon on 18/03/2014 - 12:30
"re-finished" Pentax lenses - simply amazing :)
Beautiful workmanship but.... Silver front ring will reflect onto a filter and cause ghosting.
Posted by gartmore on 24/03/2014 - 15:38
55-300 repair
Are you using any filter on the lens? If so, remove it and try it again. The 55-300 does not like filters of any kind. Secondly, is the lens calibrated to the camera for AF? If not, it should be and this could be the problem. My 55-300 is fantastic, but almost got binned when I first owned it....
Posted by davidstorm on 26/03/2014 - 21:01
Stuck adaptor
If it's your only M42 lens then IMO it's best left on the lens. I modified my earliest adapters to keep them om the lens & speed up lens changing. FWIW T2 threads (42mm X0.75) are sufficently different that the adapter will only go on about one turn maximum. It seems there is also a 42mm x 0.5 si...
Posted by petrochemist on 15/04/2014 - 14:33
Cleaning lenses/filters
Last weekend I decided to give my lens filter a good clean. I gave it a blow with my bulb blower and then after a little breath I gave it a gentle wipe with a micro fibre cloth. Looked spotless but just to make sure I shone my bright penlight across the surface just so and low and behold there was...
Posted by kiwao on 02/05/2014 - 06:46
Cleaning lenses/filters
Sometimes its not worth it to be so precious with these things! Most dust won't have any effect at all on whats recorded by the sensor. Smudges like greasy fingerprints are a problem though, but I'd rather be careful and be prepared to clean the lens front element if needed rather than stick a filte...
Posted by McGregNi on 02/05/2014 - 09:35
Cleaning lenses/filters
Yeah, ditto to what McGregNi said. I have about 50 lenses, don't have a filter on any and only clean if they look dirty. I store them in ziplock bags when not using, never had a problem with any.
Posted by nass on 02/05/2014 - 10:39
Cleaning lenses/filters
A few years ago I bought a Sigma 70-200mm f2.8 off Ebay (now owned by another forum member) and it came with a Hoya pro filter attached. I tested the lens and just couldn't get decent results from it, sometimes it refused to lock focus and when it did the pictures were no better than my kit 55-200mm...
Posted by Mike-P on 02/05/2014 - 10:50
Cleaning lenses/filters
I just thought it was ironic that I should fit the filter so that I would not have to clean the front element and then after about a year when I take off the filter I find that the front element has become filthy despite this. I do not know how. Trapped dirty air or condensation but it means that ...
Posted by kiwao on 02/05/2014 - 13:48
Cleaning lenses/filters
It's bizarre - the pics from my Sigma 70-300 look no different with or without the uv filter :D My Pentax m200mm f4 hates filters full stop My kit lenses are ok either way My Sigma 50mm macro works well with uv or polarisers and my Vivitar 28mm loves the polariser and cokin 'a's :lol: I ...
Posted by Stuey on 02/05/2014 - 22:30
Cleaning lenses/filters
I have never read that some lenses did not work well with filters. I have heard that some filters are easier to clean than others. In the video link I posted earlier I think he is a bit heavy handed but maybe that is because I am too careful. This video has good info about cleaning lenses but so...
Posted by kiwao on 03/05/2014 - 05:29
Standard lens advice
How many reviews have you read stating that SDM is ok? Here's one - it's ok! Most people with problems bleat about it; most without stay quiet! That is the age old problem isn't it, people only usually have something to say when it goes wrong. But there were a lot of happy people too. The DA17-70 ...
Posted by Russ on 08/05/2014 - 10:06
Standard lens advice
How many reviews have you read stating that SDM is ok? Here's one - it's ok! Most people with problems bleat about it; most without stay quiet! That is the age old problem isn't it, people only usually have something to say when it goes wrong. But there were a lot of happy people too. The DA17-70 ...
Posted by JohnX on 08/05/2014 - 10:25
Standard lens advice
[quote:3496ace15f="JohnX"] How many reviews have you read stating that SDM is ok? Here's one - it's ok! Most people with problems bleat about it; most without stay quiet! That is the age old problem isn't it, people only usually have something to say when it goes wrong. But there were a lot of ...
Posted by Russ on 08/05/2014 - 11:10
Cokin square filters on DA15mm
find an old 49mm filter and push the glass out then use as a coupler between lens and cokin adaptor ring
Posted by redbusa99 on 29/05/2014 - 19:33
Cokin square filters on DA15mm
I don't use Cokin filters, but use the Lee sev5n system with my DA15. I knocked the glass out of a slim 49mm uv filter, and screw this on to the DA15 before fitting the adapter ring. This raises the position the adapter sits to above the level of the built in lens hood. Works a charm:D. There can be...
Posted by Northgrain on 29/05/2014 - 19:40
Sigma 10 - 20mm F3.5 EX DC HSM - polarizing filter recommendations
I’ve just bought a Sigma 10 - 20mm F3.5 EX DC HSM for use on my Pentax K3 and I’m looking at getting a polarizing filter for it, has anyone got any recommendation or experience with the various brands i.e Kood, Hoya B+W etc as there is a quite a difference between the prices for a 82mm filter.
Posted by co049 on 30/05/2014 - 16:45
Sigma 10 - 20mm F3.5 EX DC HSM - polarizing filter recommendations
Polarising filters can/do cause odd effects on wa lenses, in particular with blue skies. To answer your question, try Marumi, great price/quality balance. Not the only sellers of course.
Posted by JohnX on 30/05/2014 - 17:02
