Search results for 'uv filter' - page 197
excessive noise
Not sure whether you mean digital noise (and then, now you have more noise than what?), or do you mean sensor dirt. Post some example picture so we can find out. If it is dirt, then it doesn't matter what ISO you use, and you shouldn't be too much afraid of cleaning sensor (or raher filter that sit...
Posted by piotro on 27/04/2010 - 00:51
excessive noise
A senor will always display some noise because but at iso100 the noise will only be really visible when viewing at or over 100% zoom and at the darker areas, this with CCD sensor a CMOS sensor I would expect to show more noise, certainly with the K-X because that's extended ISO. There is a glass ...
Posted by Anvh on 27/04/2010 - 01:00
excessive noise
Stefan just clean it with a Arctic Butterfly the sensor has a filter over it so you Will not damage it James
Posted by pink on 27/04/2010 - 08:08
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
Hello all, I'll roll an intro in with a first post if you don't mind :) I am finally dipping a toe into DSLR photography. I enjoy spotting a good scene and framing a shot and the limitations of P&S were getting to me. I nearly bought a Panasonic 'bridge' camera, but after trying it, I wasn't h...
Posted by Igor on 27/04/2010 - 15:48
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
UV filters don't have much use anymore because the lens coatings and the filter in front of the sensor already cuts UV light so you might be better of not adding another piece of glass but that's something for you to decide. As for the PL, I use it all the time, with a bit of an overcast you can ...
Posted by Anvh on 27/04/2010 - 16:05
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
First of all, welcome to the forum, Igor. It's a friendly place, abd you will get lots of good advice. I wouldn't leave the polafilter on the lens permanently, since it loses light (at least one full stop), and not all scenes benefit from the polarizing effect. It is good to have for landscapes w...
Posted by terje-l on 27/04/2010 - 16:09
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
Hi, thank you both. I've decided to get a Hoya CPL filter, and just a clear glass Hoya protector, both reduced quite nicely. Since I got a free Hoya UV filter with the camera, might as well stick that on one of the lenses anyway - but I'll keep an eye on any flare in photos. That cambridgeincolou...
Posted by Igor on 29/04/2010 - 01:44
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
CPL filters affect the capability of the camera to autofocus, particularly with zoom lenses in the higher range. Personally I think it has some effct on exposure as well. Stick with the UV
Posted by surfseen on 29/04/2010 - 07:38
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
Do remember that you will lose two stops with the CPL, effectively your 18-55 will have a max. aperture of f11.
Posted by gartmore on 29/04/2010 - 08:21
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
CPL filters affect the capability of the camera to autofocus, particularly with zoom lenses in the higher range. Personally I think it has some effct on exposure as well. Stick with the UV You're describing linear filters, circular would effect the focus and metering just as much as a UV filte...
Posted by Anvh on 29/04/2010 - 09:21
? - Hoya 52mm HRT Circular Polarising & UV Lens Filter
Ah, thanks for the tip on SRS postage Stefan :) I'll see how it goes with the CPL filter, but I'll be aware that it's probably most useful on sunny days. I'm going to the Lake District in June - seems like the perfect place to use one, with all those hills and water.
Posted by Igor on 29/04/2010 - 10:02
Suggestions ...
My suggestion:- Buy a K7 + grip + 2 lens kit and start from there. He'll also need one or more of the following:- Memory cards, flash, tripod & head, polarizing filter(s), Arctic Butterfly, a decent waterproof bag, Adobe Lightroom, Adobe Photoshop Elements, decent spec. PC, decent spec. notebo...
Posted by Mannesty on 04/05/2010 - 08:24
Suggestions ...
I agree with John. Besides which it's topo easy to focus on camera and lenses and forget about filters, tripods, bags, software, etc which make up the bulk of purchases if not price. In fact my suggestion for a beginner would be a K7 and a 40mm prime. Learn how to shoot first, then get better g...
Posted by polchraine on 04/05/2010 - 08:39
Suggestions ...
the new 50-500mm has gone from an 86mm filter upto a 96mm filter and from a f4/6.3 upto a f4.5/6.3 but is suppse to be as good optically as the old version and better than the 150-500mm, but it should be at 3500 more. heres it up agaist a nikon 500mm f4 if interested. http://forums.dpreview.com/fo...
Posted by pentaxanne on 04/05/2010 - 23:06
Where can I get an OEM K-m focussing screen?
I've now ordered an OEM Kx screen from them (should fit, the Km uses the same body) with a view to reverting to standard. The split prism is just too dark when you use something like a polarising filter, and I'm not sure that the focus is much more accurate than using the MK1 eyeball. This time,...
Posted by Dangermouse on 07/06/2010 - 23:30
Where can I get an OEM K-m focussing screen?
My main complaint is that the cheap split prism makes the image too dark, especially if you want to use a polarising filter or similar. I would have changed back if I hadn't managed to scratch the original screen, now waiting for a replacement.
Posted by Dangermouse on 11/06/2010 - 15:29
Where can I get an OEM K-m focussing screen?
My main complaint is that the cheap split prism makes the image too dark, especially if you want to use a polarising filter or similar. I would have changed back if I hadn't managed to scratch the original screen, now waiting for a replacement. Not owning a polarising filter it wasn't a problem for ...
Posted by robbie_d on 11/06/2010 - 15:31
Differences between Ist D and later 6MP cameras (for IR conversion)?
Hope someone can help here. Thinking about getting an older 6MP body converted for infrared photography, rather than using R72 filter as I do currently. The main people recommended in the UK who I have heard of - Advanced Camera Systems - say that they will do the conversion on the ist D but a...
Posted by JonSchick on 05/05/2010 - 13:52
Differences between Ist D and later 6MP cameras (for IR conversion)?
The sensor in all of the 6Mp cameras is the same CCD, Sony I think. Whether the mounting is the same across models I don't know. AFAIK there are a couple of conversions that can be done for better IR performance. You can either replace the filter that is placed in front of the sensor with plai...
Posted by Mannesty on 06/05/2010 - 00:12
Differences between Ist D and later 6MP cameras (for IR conversion)?
Thanks both. I already use an R72 filter with K100DS, but shutter speeds inevitably get below hand-hold level unless you whack the ISO up. So I'm thinking of replacing the filter in front of the sensor with R72 as the camera will then function as Peter has described. I can't see why a compa...
Posted by JonSchick on 06/05/2010 - 08:47
