Search results for 'uv filter' - page 70
2xConverter
I think the degradation of lens glass by neutral UV filters may be being over-stated. I recently purchased a used Pentax-F 80-200 zoom from the US. It was advertised as having a small piece chipped off the filter ring. The lens also had a promaster skylight 1A filter attached. Now I don't like fil...
Posted by philmerrin on 24/10/2006 - 05:06
2xConverter
The haze filter would reduce the blue light that gets scattered and spoils definition and contrast. So, thet's absolutely right, in some cases filters can improve a shot, especially long distance ones like you describe. However, it would have been counter-productive if you had wanted a misty, atm...
Posted by johnriley on 24/10/2006 - 08:02
2xConverter
John is absolutely correct on this. I'm using Pentax SMC UV and skylight filters in the hope that the SMC coating should be better than other or no coatings but... I had always used filters for 'protection' until a zoom lens rolled off the top of a Billingham bag which was on a carpeted floor. Th...
Posted by gartmore on 24/10/2006 - 09:14
2xConverter
Thanks John and Gartmore. With regards to the shattered filter, I'd tend to agree the cheap glass would break very easily and with a drop like you had the shattering glass is potentially a greater hazard to the lens than if you didnt have one. While I don't argue for filters to be used 24/7. I d...
Posted by philmerrin on 24/10/2006 - 09:55
2xConverter
I'd tend to agree the cheap glass would break very easily Not only the cheap glass. I've been using Hoya Pro-1 filters which have a very good coating, and are lovely and thin... but also fragile. Duffed in my SMC-FA 24-90 at the weekend - camera and lens slipped round off my shoulder while kneeli...
Posted by MattMatic on 24/10/2006 - 10:20
2xConverter
I've been slowly acquiring hard sun shades for my various (wife says "numerous") lenses. As I install them, I've been removing UV and Skylight filters and putting them in my kit bag for use when and if required. I figure the front element is quite well protected from most contact by ...
Posted by Anonymous on 24/10/2006 - 11:49
SMC 50MM 1:2 and 1:1.7 Comparison
One other consideration when making your choice (apart from price) is the weight. My:- SMCP(K)1:1.2 weighs 417 grams (including caps and filter). SMCP-M 1:1.4 weighs 250 grams (including caps - no filter). SMCP-A 1:1.7 weighs 193 grams (including caps and filter). SMCP-F 1:1.7 weighs 243 gr...
Posted by Mannesty on 23/09/2006 - 18:26
Sigma 100-300 mm f4 EX
I have a Sigma EX 100-300F4 It is a very good lens, I use it with my Pentax DS, and previously on a MZs with no compatability issues. It is mostly very sharp with no noticable flare shooting into the sun, autofocus is quick and accurate Gets a little soft at 300mm f4, but sharpens up nicely...
Posted by Kevin Stephens on 28/09/2006 - 17:48
Kit lens on new DL
Hi Ratbag, It's so that when you have a polariser filter mounted on the lens, you can still rotate it with the lenshood in place, you just remove that small piece so that you can access the filter. :D Happy playing, Dan
Posted by Daniel Bridge on 02/10/2006 - 22:51
10-17
Many thanks for the replies. Ammonyte the grad is just done in photoshop, i dont have a filter big enough for this lens yet. I included the second pic to show (more tests required) that the fisheye distortion is only visible if you want it to be and the fantastic blue sky rendering - almost as if...
Posted by mxuser on 09/10/2006 - 19:10
10-17
the grad is just done in photoshop Ah, I'd wondered how you had managed to get a filter onto a fish-eye :wink:
Posted by Ammonyte on 09/10/2006 - 21:59
Auto Focus Lenses - The Long and the Short of It
my 28-70 has been through H. E. L.....you get the idea. I've not had that problem....but then my macbook hasn't been frying eggs or shutting itself off, I threw a chain on my 130 hp motorcycle and only need an oil filter housing, chain and sprockets...the list is endless...maybe I'm just a lucky guy...
Posted by Don on 24/10/2006 - 21:43
Diffusion Confusion
When I bought my 35-70mm f4 SMC Zoom, I went after 58mm filters for it. I was lucky enough to find an eBay seller offering Hoya Polarizer, UV(0), Skylight and Diffuser as a package for a great price and snapped them up as much for the PL as anything. Only recently have I actually looked at the ve...
Posted by Anonymous on 02/11/2006 - 22:02
Diffusion Confusion
The Gaussian Blur feature in Photoshop is the same as a diffusion filter.
Posted by Arthur Dent on 04/11/2006 - 20:50
Diffusion Confusion
I just got a comparison portrait shot back - ISO 200, f5.6, 1/125 sec. Pentax 280 TTL flash through a Super Program using a 35-70 f4 zoom at 50mm. One shot is nice, the other looks like it is out of focus - not nice - but good if you're shooting Canon? Going to try spritzing it with glycerin a...
Posted by Anonymous on 05/11/2006 - 20:11
Diffusion Confusion
I think I meant spritz the flowers not your filter or your camera or your scotch....I think I need to post a liability waiver if I'm to continue giving out advice.... Do NOT drink scotch, and blow things up while taking pictures....your pictures CAN and most likely WILL be used in court against you...
Posted by Don on 05/11/2006 - 20:16
Is a Really Fast Lens Worth It?
Hi Mac, Good question, not silly question! One that you can only really answer based on personal experience and techniques, I think. For me, there are several benefits, and several drawbacks, to large aperture telephotos: Benefits 1. Brighter viewfinder image (great for focusing - manua...
Posted by Daniel Bridge on 03/11/2006 - 13:21
Newbie Lens Question
The Pentax 18-55mm and 50-200mm lenses would cover almost any photography you could imagine. The quality would be excellent and the controls would all work in the same way. Also, the filter size would be the same for both lenses, useful as you would only need to buy one size. Your older lenses wi...
Posted by johnriley on 06/11/2006 - 07:43
16-45 vs 24-90
Busy editing my photos last night and I have been comparing the photos taken on the *ist D with the 24-90 on the front and my *ist DL which came with the kit lens (the 18-55) I noticed that wide open at the wide end there is a lot of vignetting (and yes I do have a UV filter on the front) on the ...
Posted by Pwynnej on 16/11/2006 - 08:38
16-45 vs 24-90
Which lens exhibits vignetting. The 24-90 certainly shouldn't unless you have too small a hood on it. I've never noticed it with my 16-45 on my D either. Maybe your filter is causing it. You'll see other threads on here about opinions on filters. Personally, I can't see the point of buying a very ex...
Posted by Mannesty on 16/11/2006 - 09:05
