|
Forum: Pentax DSLR Discussion
02-24-2011, 03:22 AM
|
| |
Regarding the UV filter, I think the most important aspect in making the right choice is the flare resistance, and this will be down to the quality of the (multi)coatings. Here's an interesting thread illustrating this nicely:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/119919-weird-f...ro-lights.html
The above discussion seems to highlight the fact that the main problem is the lens's front element reflecting light back to the filter, which in turn reflects it back into the lens.
Thinking about this, it occurred to me that the best choice of filter would be one with multi-coating which reflected a colour which was different from that reflected by the lens's front element. For instance, most SMC lenses look rather green; if the filter were good at nulling out green, then this would seem to be the best choice. I always think Nikon multi-coating looks dull purple, so maybe a Nikon filter would give best results???
Of course, flare-resistance isn't the only problem. Here's what happens if you buy a really dodgy filter:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/124056-impact-...uv-filter.html
So, don't go too cheap when it comes to UV filters!
|
