Search results for 'uv filter' - page 320
ND filters - how do they do it?
A standard ND filter just reduces the amount of light, full stop. I can't see how this would help with anything except allowing longer exposures for effect, and even then you'd need a pretty dense one to help with waterfalls and the like. So I'm mystified as well...
Posted by karma mechanic on 10/03/2011 - 16:19
ND filters - how do they do it?
Have a read , it pretty much explains it all. Hope that helps you understanding it. EDIT: is another good read about the way the ND Filter works!
Posted by SmutjeUK on 10/03/2011 - 16:33
ND filters - how do they do it?
I think there's a little confusion here regarding plain ND filters & Graduated ND Filters - a normal ND filter has the same level of coating across the whole glass so just reduces light for the whol scene. An ND GRAD has a different coating top and bottom so helps to balance land & sky in high contr...
Posted by simonkit on 10/03/2011 - 18:36
ND filters - how do they do it?
Yes, the OP was asking about how the non-graduated ND filter could help with the exposure balance, while SmutjeUK's links give information about the normal use of those filters. I believe that Dangermouse was simply given bad advice!
Posted by karma mechanic on 10/03/2011 - 18:58
ND filters - how do they do it?
one place you could try an nd filter for exposure balance is when your light levels are too high for your desired aperture setting.... but unless you are shooting HDR and using the nd filter instead of bracketing your exposure, I see no way to use an nd in place of a grad nd. now maybe the op ...
Posted by Don on 10/03/2011 - 19:03
White Balance.
Can anyone offer me advice please? I am looking for help with colour matching. I have found two methods, these being the Grey Card and the White Balance Lens Hood which seems not unlike the old Weston Invercone to look at. Aside from the obvious consideration that you would only need to buy o...
Posted by merryhampton on 12/03/2011 - 14:58
White Balance.
For the best accuracy a WhiBal filter. A grey card is also OK but nowhere near as accurate because the photographed RGB values do vary slightly. I've also bought a quite cheap and interesting. You can DL the software for free and try it on a few supplied Jpegs. I bought the QPcard Sample Pac...
Posted by Algernon on 12/03/2011 - 16:21
White Balance.
For the best accuracy a WhiBal filter. A grey card is also OK but nowhere near as accurate because the photographed RGB values do vary slightly. I've also bought a quite cheap and interesting. You can DL the software for free and try it on a few supplied Jpegs. I bought the QPcard Sample Pac...
Posted by Algernon on 13/03/2011 - 10:20
Lightroom 3.3, some help PLEASE!
Yup I have the Library filter showing all the time in grid mode. You can create presets for it too. Another keyword tip is in the keyword list if you hover over a keyword a white right arrow appears.. click on this and instant smart collection of all pics with that keyward
Posted by Smeggypants on 23/03/2011 - 22:45
Lightroom 3.3, some help PLEASE!
As I shoot in RAW+ is there a way of splitting the DNG files from its jpeg files easy? I would make then two 'smart folders', one for DNG and one for jpeg, or can that be done automatically? May I ask to much here of the program?:lol: No idea... you can look around on the web for that, someone mig...
Posted by Tyr on 24/03/2011 - 19:12
bird advice from bird Photographers
First of all, don't be so hard on yourself: the shot of the dunnock is superb! Bird photography in the wild is not easy and requires oodles of patience and good field craft. An high quality long lens of 300mm or more is a real advantage and if bird photography is more than just a passing interest...
Posted by prsjnb on 26/03/2011 - 12:01
What are you saving for now?
K5 would be nice but I'm ok with K-7 for the time being. Kind of silly to replace so quickly. Just got a W90 so I can do underwater, if anything a proper filter set is probably next on the list.
Posted by nass on 29/03/2011 - 09:16
advice on photo PP
Hi Stuart, From the filter tab in PS, scroll down to Sharpen>Smart Sharpen, from the pop-up screen that appears: Amount: 200% Radius: 0.5 Pixels Remove: Lens blur John
Posted by johnwhit on 01/04/2011 - 09:37
pentax kr and a Hoya R72 InfraRed filter
hello guys. i would really like to have a go at infrared photography and create those dream like pictures like this image here. ive seen tutorials on youtube on how to create these images which is fine but all i want to know is that if the pentax kr is sensitive to infrared light and capable ...
Posted by jkdlee on 02/04/2011 - 22:46
pentax kr and a Hoya R72 InfraRed filter
Regarding IR sensitivity the sad truth is that older is better. The generation of cameras that includes the *ist DS allows IR shots to be handheld, while the K10D needs many seconds exposure. In each generation of camera the strength of IR filtering tended to be greater and the exposures got longer...
Posted by karma mechanic on 02/04/2011 - 23:08
pentax kr and a Hoya R72 InfraRed filter
thanks for the helpful advice. yeah i have read that u need long exposures with these new generation of cameras unless u modify it. nonetheless i will still buy the filter and just experiment with it. i dont mind using a tripod :) nice pictures btw. i like the black and white versions too. cheers
Posted by jkdlee on 02/04/2011 - 23:37
pentax kr and a Hoya R72 InfraRed filter
I tested the K-r for |EPZ and the IR perfomance looked encouraging. I only tries using Channel Mixer inb Photoshop, but it looked as though there was some potential for IR phgotography.
Posted by johnriley on 03/04/2011 - 01:38
pentax kr and a Hoya R72 InfraRed filter
I tested the K-r for |EPZ and the IR perfomance looked encouraging. I only tries using Channel Mixer inb Photoshop, but it looked as though there was some potential for IR phgotography. thats good to know. thanks:)
Posted by jkdlee on 03/04/2011 - 20:26
pentax kr and a Hoya R72 InfraRed filter
Here's a test shot on the K-5 and R72 filter to give an idea. Overcast, exposure was 8 sec at f/5.6, ISO 800: Same thing without the filter, 1/200th at f/5.6, ISO 800: For the IR one I used 'click white' in Bibble to get the white balance from the old sink in the background, it gave a ...
Posted by karma mechanic on 03/04/2011 - 21:41
pentax kr and a Hoya R72 InfraRed filter
thanks for that karma! hopefully the kr will produce near similar results. ill post again wen i receive my filter :) cheers
Posted by jkdlee on 04/04/2011 - 23:43
