Search results for 'uv filter' - page 344
Working with HSV images- any GIMP experts here?
Whats' a BIL filter? What you're saying is a bit beyond my present comprehension, both of color spaces and of GIMP.
Posted by aliengrove on 03/04/2014 - 22:36
Working with HSV images- any GIMP experts here?
Bilateral filter is mentioned, "similar to selective Gaussian blur". I'm guessing BIL is bilateral
Posted by dougf8 on 03/04/2014 - 22:40
Working with HSV images- any GIMP experts here?
layer difference script http://registry.gimp.org/node/20340 bilateral filter in here http://registry.gimp.org/node/13469 http://gorgodium.blogspot.co.uk/2011/11/18-most-useful-gmic-scripts-for.html The specific bilateral filter mentioned splits the image into two layers , the base and the d...
Posted by dougf8 on 03/04/2014 - 23:24
Working with HSV images- any GIMP experts here?
layer difference script http://registry.gimp.org/node/20340 bilateral filter in here http://registry.gimp.org/node/13469 http://gorgodium.blogspot.co.uk/2011/11/18-most-useful-gmic-scripts-for.html The specific bilateral filter mentioned splits the image into two layers , the base and the d...
Posted by gwing on 04/04/2014 - 05:13
Testing 17-70 lenses - Sigma vs Pentax
Hi Everyone I recently acquired a Sigma 17-70 F2.8-4 HSM OS Macro lens from another Forum Member, with the intention of keeping either this or my Pentax DA17-70 as my default walkabout lens. However, since getting the Sigma I have struggled to get sharp images from it, so today I decided to cali...
Posted by davidstorm on 21/04/2014 - 21:53
100mm filters
Phew that's a relief, didn't fancy starting the filter collection from scratch. I haven't got a slim holder at the moment but will do soon. Many thanks, you've made my day.
Posted by Russ on 24/04/2014 - 12:04
100mm filters
I can just get away with a P sized slim filter on the DA12-24 with perhaps a little vignetting on the corners. (It actually vignettes on the inside rim of my hacked down holder more than the filter itself) Not sure you'll get to 10mm :? I ended up with the Lee Foundation holder and Cokin Z-Pro...
Posted by MattMatic on 24/04/2014 - 12:41
100mm filters
Russ I have the Sigma 10-20 and use a Cokin slim holder for the P series of filters. Firstly you can only fit either a ND grad or a polariser but not both together. Also I get strong vignetting when using small apertures, say f16 onwards especially with the polariser especially wider than about ...
Posted by harwood6120 on 30/04/2014 - 08:16
RAW converter for K5
Bjørn, one thing I should mention about DXO Optics Pro is it doesn't have the ability to use a grad filter, which is why I use it in conjunction with Lightroom. However, the Prime noise reduction engine works far better (two or more stops, Nigel :wink:) than Lightroom's NR. It also has a number of v...
Posted by aliengrove on 21/05/2014 - 16:03
RAW converter for K5
Jon, your 'two stops' may well be a way of internalising the differences for an individual, but it can't be a serious measurement between a range of programmes and a range of user experience. How do we know that another photographer cou:Pld not start out on the same shot with different software and ...
Posted by McGregNi on 21/05/2014 - 16:28
Best Photographers Tool Apps for Android
I must say I use a phone app for calculating 10 stop filter long exposure times now. Much easier than carrying a sheet of paper around like I used to. That's not Android specific though, just thought I'd mention it.
Posted by richandfleur on 25/05/2014 - 01:02
Best Photographers Tool Apps for Android
I use 'Exposed' [by Braxis ltd] for ND exposures. Easy to use, just select the ND value, reference F-stop, and it gives the required shutter speed. You also have a count down clock to time the exposure. given the Camera's meter works through the lens, if you attach an ND filter then why isn't the c...
Posted by Smeggypants on 25/05/2014 - 04:55
Best Photographers Tool Apps for Android
given the Camera's meter works through the lens, if you attach an ND filter then why isn't the camera's meter enough to tell you the correct exposure? It won't do it on a 10stop ND, where the exposure time stretches into eternity (well, on the way to ...)
Posted by CMW on 25/05/2014 - 16:12
A question about auto extension tubes
If Ricoh were to release their code for serious developers they'd get a darned good idea of the features we actually want. Focus peaking on the K-5/II/IIs would be a great start. In fact it'd be a cool upgrade for any body equipped with Liveview. I doubt it'll ever happen though. Another brand (c...
Posted by richandfleur on 30/05/2014 - 00:28
Anyone using their DSLR for video
Ya see, thats whats so great about this forum ... you can have a fight with someone on the other side the world about whether a K7 is abysmally woeful for video or superb in every way! :mrgreen: Surely one or the other MUST be right ?? :?:D Or is the truth somewhere more in between .... Anyway, ...
Posted by McGregNi on 26/06/2014 - 15:51
Anyone using their DSLR for video
It's not about who it right or who is wrong, it's about who can help the other person get the best from their camera by sharing their knowledge and technique/s, correct? If you can't handle apposing opinions please don't be so quick to label me or accuse me of trying to invoke a 'fight' (your word...
Posted by SteveLedger on 26/06/2014 - 23:18
Settings help
Though the two shot and photoshop route. Still makes me feel like im cheating....lol Everyone wants a new camera with incredible dynamic range, but technically if the scene is static and you use a tripod then you can achieve that magical device outcome right now. Don't think of it as cheating, but ...
Posted by richandfleur on 28/07/2014 - 00:49
Hot Shoe Microphone - Recommendations?
No worries. It's a big area, so just wanted to get a feel for what you'd want to do with the gear. It's a bit like asking "What lens should I get for my new DSLR body?" to which the response should definitely include "What do you want to take photos of?" etc which means all those different ...
Posted by richandfleur on 03/10/2014 - 02:03
variable ND filters
hi all, i was thinking about getting a variable ND filter but my budget doesn't allow for the expensive brands. can anyone recommend a cheaper version? and are they any good in comparison to the dear ones? I'm after a 62mm which I will use for smaller lens using step down adapters. many thanks ...
Posted by balsembi on 02/10/2014 - 15:25
variable ND filters
What is worth noting is that when you increase the density to higher levels you get uneven exposures, from what I have read this can also be true of more expensive variable filters. . This problem with a variable ND filter increases the wider the angle of the lens - I managed to get a dark cross sha...
Posted by alfpics on 02/10/2014 - 19:44
