Search results for 'uv filter' - page 355
Lens protection filters
Lens protection filters are little more than a scam. For every tale of one saving a lens there's another of one damaging a lens by the shards of the protection filter scraping the glass of the lens. A hood will do far more to protect a lens from knocks and spray plus adding flare protection and th...
Posted by Jonathan-Mac on 25/06/2018 - 09:08
Lens protection filters
I've got a Hoya Fusion Antistatic UV filter for my 24-70mm lens. I haven't noticed any image deterioration, but it makes safely cleaning the front element much less of a problem. I've never really bothered with them before, but this lens was pretty expensive and has a big non-recessed front element....
Posted by Pentaxophile on 25/06/2018 - 10:28
Lens protection filters
Back in the era of the Pentax ME Super, Olympus OM10, Minolta X300, Yashica FXD and the like, skylight or UV filters were sold as protection and haze reduction for the lens but even then there was debate over possible flare and IQ degradation (this argument was usually countered by offering the more...
Posted by LennyBloke on 25/06/2018 - 12:43
Lens protection filters
I once purchased a used Sigma 70-200mm f/2.8 off Ebay and when it arrived the pictures were so soft I presumed it had been damaged in some way. Then I realised there was a thin filter on the front (quite an expensive one from what I remember) so before opening an Ebay dispute I tried again with the ...
Posted by Mike-P on 25/06/2018 - 16:44
Lens protection filters
I must one of the very few who use good quality UV or Skylight filters over lenses (not that I've ever encountered any issues with sharpness). Cleaning a filter is much safer than repeatedly cleaning the front element - I've lost count of the number of fingerprints end up on my filters (maybe I'm a ...
Posted by johnha on 25/06/2018 - 17:45
Lens protection filters
I've always liked Tiffen Haze-1 Filters. They do cut through haze and increase contrast at the edges which are normally soft. Used to be expensive, but now available cheap on Amazon uk All sizes seem available select from the drop down box. This is a Tiffen 52mm Haze-1 Filter https://www....
Posted by Algernon on 25/06/2018 - 18:40
Lens protection filters
I have been a photographer for 40 years. Never bumped or banged a lens (tempting fate here I know). I take the view that lenses are tools to be used to the best of their and your ability. I won't fit a filter on a lens for the purpose of "protection" unless it is warranted (sand, salt spray) if it h...
Posted by pschlute on 25/06/2018 - 20:47
Losing weight
This is not rambling at all Rob..!! For Pentax users it is an issue I feel.. I am in the process of setting up a Landscape kit myself. But I'm having similar issues .. Though in the really wide angle lens dept. I havint yet made the purchase. After looking at cheaper Samyang and Irix offerings.. ...
Posted by stub on 19/08/2018 - 13:20
Multi Exposure as an alternative to ND Filters (Discuss)
I have downloaded and enjoyed a very good 'Guide' to the K3 "Everything you need to know... and then some." - Yvon Bourque. In this publication there is a suggestion to use the Multi Exposure setting as an alternative to using an ND filter to capture moving water etc. In theory it seems a great...
Posted by Snappyhoffy on 14/09/2018 - 13:23
Multi Exposure as an alternative to ND Filters (Discuss)
I have tried multiexposure and the results have been a bit mixed as lots of single images merged do not look the same as a smoothed single exposure. The only way it could work is if you make a large number of exposures, say 50 or more, but it is worth experimenting. Downside of course is your shutte...
Posted by RobL on 14/09/2018 - 13:48
Multi Exposure as an alternative to ND Filters (Discuss)
There was some sort of discussion on this a while back, but I can't seem to find it. However I have one posted in this thread - no 8 in the thread - 30shots. I agree it doesn't give the ultra smoothness of a proper ND filter, but sometimes this doesn't matter. It can save some time fiddling around g...
Posted by alfpics on 14/09/2018 - 17:33
Multi Exposure as an alternative to ND Filters (Discuss)
I thought the intention is to add 2 o 3 images not 50. But understand the graduated ND filter comment.
Posted by Snappyhoffy on 14/09/2018 - 18:19
Multi Exposure as an alternative to ND Filters (Discuss)
I thought the intention is to add 2 o 3 images not 50. But understand the graduated ND filter comment. If you only use two or three you won't get smoothing or blurring, just rather messy unsharpness if that makes sense where moving parts like waves show each separate exposures overlaying each other....
Posted by RobL on 14/09/2018 - 22:45
A mini rant.
Quite sure it's right. I've noticed on several reviews where MF shots are not in focus and the best lens expert on DPR mentioned something about it once. It's not a fault probably designed to have wider tolerance for continuous shots after the first. The K-5 does it as well but not by as much. I oft...
Posted by Algernon on 13/02/2019 - 20:10
Infrared Hot Spots
Is it normal for the same lens to display hot spots over differing f stops depending on the rating of the IR filter used? Example IR720 filter no visible hot spots from f2.8 to f22. IR 850 filter hot spots from f11 to f22.
Posted by bforbes on 09/06/2019 - 12:59
Infrared Hot Spots
I've not noticed any effect from the filter used, but there are certainly a huge number of variables that affect hotspots: I've had a lens cause them every time with one body, yet never at all with another. Another lens only seems to give hotspots when focused close Then we have aperture setting,...
Posted by petrochemist on 12/06/2019 - 23:46
CPL for Pentax 18-135mm
Can anybody recommend a reasonably priced Circular Polarising Filter for the Pentax 18-135mm WR it is a 62mm Thread I believe.
Posted by dave_walton on 04/09/2019 - 17:25
CPL for Pentax 18-135mm
Have a look at the Hoya Pro 1 Digital filter.
Posted by mr.mellow on 04/09/2019 - 18:27
CPL for Pentax 18-135mm
I would recommend you buy a larger CPL filter and a step down ring.. As quite a few Pentax lenses now have a larger filter size,,
Posted by stub on 04/09/2019 - 19:09
CPL for Pentax 18-135mm
https://www.amazon.co.uk/Hoya-Pro-1-Digital-Screw-Filter/dp/B000KZ9916/ref=sr_1_3?keywords=hoya+62mm&qid=1567622238&s=gateway&sr=8-3
Posted by Mannesty on 04/09/2019 - 19:37
