Search results for 'uv filter' - page 195
multiple exposure feature uses??
Take a three image multiple exposure. In the first shot use a red filter over the lens, a blue filter in the second shot and a green filter in the third. Anything that has remained still during all three shots will appear as normal (a combination of the R, G and B images) whereas items that have mov...
Posted by Anvh on 04/01/2010 - 14:48
multiple exposure feature uses??
Nice effect no need for a filter though , you can simply extract the colour you need since the sensor is built up form red green and blue filters. Not "in-camera" on a K10 - none of those flashy colour extraction special effects here! :wink:
Posted by hefty1 on 04/01/2010 - 14:51
multiple exposure feature uses??
If it's snowing or raining mount camera on tripod take your exposureseveral then merge in Photoshop using 'darken' blending and raindrops or falling snow will disappear. Multipul exposures (perhaps combined with a dark ND filter) can make moving objects - e.g. vehicles, or people - disapear from ...
Posted by Bob and his Pentax on 04/01/2010 - 16:20
Cokin P filters with K10d and all lenses
I use Cokin P filters with the lenses listed below and haven't noticed such an effect. It sounds like the filter is being flexed outwards - is your holder too tight perhaps?
Posted by hefty1 on 07/01/2010 - 23:33
Cokin P filters with K10d and all lenses
I think it might be the light that's reflecting on the filter, try to cover the gap from the filter to the lens and see how that works. That was the problem with me sometimes.
Posted by Anvh on 08/01/2010 - 22:58
Cokin P filters with K10d and all lenses
I had this problem aswell. I found that after washing the filters in soapy water and rinsing them thoroughly the problem went away. I think it was probably a thin film of oil from my skin that had been smeared across the filter over time, even though I could see nothing on the filter. The problem wa...
Posted by aliengrove on 09/01/2010 - 13:55
Using masks for Wedding special effects
Ah!!! The rainbow filter...
Posted by gartmore on 10/01/2010 - 17:14
Using masks for Wedding special effects
Ah!!! The rainbow filter... ...and it looks so natural! :lol: Dan
Posted by Daniel Bridge on 10/01/2010 - 18:16
Using masks for Wedding special effects
Ah!!! The rainbow filter... ...and it looks so natural! :lol: Dan I have to confess to having owned one of these. I don't think I ever used it though.
Posted by SteveT on 10/01/2010 - 21:33
K7 RAW Images
Hi Chris, firstly welcome to the forum :) I haven't notice this Serpia tone you mention with my K-7 PEF RAW files. I mainly use CaptureOne occasionally in combination with Helicon Filter. Have you tried both PEF and DNG? Because some programs have a particular affiliation to either file type, fo...
Posted by Greytop on 09/01/2010 - 14:34
K7 Raw files and Photoshop CS3
I did notice this morning, that when I opened a DNG file the Adobe Raw camera conversion section now offers me three choices; Embedded, Adobe Standard, Camera Standard. In the past I would have selected the Pentax Camera from the list, which option do I select now. Graham those are camera profiles, ...
Posted by Anvh on 16/01/2010 - 11:07
K7 Review at The Register
Having posted those images yesterday I thought I would run a quick experiment to verify what the K-7 is capable of (SR and ISO) and to check that the previous images were not a fluke. I set to shutter priority 1/5 sec with ISO set to 3200, generally settings I wouldn't use :) I then took two grou...
Posted by Greytop on 18/01/2010 - 13:23
Adapter ring
I have one ring which works that way although I don't know the proper name for it..., nor where it came from I'm afraid (useless I am). It's a metal ring with a 49mm thread one side and a 52mm thread the other so I can (for example) screw it into the filter thread of my 50-200mm lens and then revers...
Posted by matwhittington on 21/01/2010 - 22:28
K20d or K7??
I would add to Pete's pluses for the K-7, K20D build is great but the K-7 is better :wink:, magnesium alloy body with stainless steel chassis. Much better live view implementation, great for macro work. Sadly the K20D's live view is crippled to the point that I disabled it (when I had a K20D)....
Posted by Greytop on 31/01/2010 - 00:13
Strong flare "effects" in polluted environment
hello, I'm in Cairo at the moment, and the other night I was out taking photos...when I noticed a luminous spot in one of the photos (mosque courtyard, lit background - spotlights on top of columnade). I probably wouldn't have noticed it if it hadn't been in the wrong place, that is, above the co...
Posted by aladab on 02/02/2010 - 18:59
Strong flare "effects" in polluted environment
A dirty sensor results in dark spots or marks at small apertures, not luminous ones. I think you are getting flare from the lens and filter. A hood may help to some extent, but you can't always avoid it. I would ditch the filter.
Posted by iceblinker on 02/02/2010 - 19:21
Strong flare "effects" in polluted environment
thanks iceblinker I'll do as you say re: the filter. The lenses I'm using are: - (all SMC-A) 28/2.8, 50/1.7, and 135/2.8. They never game me flare problems (not to this extent anyway) in night photography in London. Do you think it's got to do with the environment?
Posted by aladab on 02/02/2010 - 19:25
Strong flare "effects" in polluted environment
"whenver a spot-light or a street-light is in the picture, if the light they radiate is strong enough, the spot-light or street-light replicate itself somewhwere above its location. Usually it looks as if there were a bulb hanging from the sky. I never got more than one of these luminous spots, but ...
Posted by gartmore on 03/02/2010 - 08:58
Strong flare "effects" in polluted environment
Aladab says the lumninous spots are still present without the filter, though less visible. So there is a certain amount of flare or ghosting with the lens as well as the filter.
Posted by iceblinker on 03/02/2010 - 10:30
K-x is so versatile
Here's a quick noise reduction exercise with Helicon Filter, hope you don't mind :) I does look pretty impressive for ISO 12800 though.
Posted by Greytop on 06/02/2010 - 00:07
