Search results for 'uv filter' - page 167
My first macros with the ist
I was interested to see this as I'm planning to play about with some macro myself. I'm thinking about using a SMC-M 50mm F1.7 as the lens though - I do have lenses that'll focus closer however they're all zooms. I've got a Jessops extension tube set (13mm, 21mm & 31mm) plus a 2x convertor and...
Posted by Anonymous on 14/01/2006 - 11:18
My first macros with the ist
I'm really getting to love macro photography! For not big bucks at all, there is a ton o fun and endless subjects to shoot. I enjoy taking pictures of parts of objects that strike me as pretty and then asking folk to figure out what they are. Some tubes, a reversing ring and your already e...
Posted by Anonymous on 30/01/2006 - 00:42
cleaning
If I can't blow it off with a "Rocket Blower" (never, ever blow with your mouth!!), then I have to clean properly. That involves using Eclipse fluid and PecPads on the end of a piece of flat plastic. One drop of Eclipse, wipe across the CCD and that's clean (may need to do it twice). The coati...
Posted by MattMatic on 15/01/2006 - 08:11
cleaning
--- but it works without drama. I picked up this tip for cleaning a Nikon (D70) sensor which I believe is identical to the *ist DS sensor at another forum. I've used it on my *ist DS and I can assure you it works without detrimental effect on the camera. Cut a piece of 19mm wide Scotch Magic Tape...
Posted by emem48 on 19/01/2006 - 02:41
RAW vs. JPEG
One of the basic points would be that tungsten light is way outside the limits at which AWB functions, so it's no surprise that the results are too orange. I would suggest using the tungsten setting, and things will improve dramatically. In CS2 there are photo filters, so if you want to correct y...
Posted by johnriley on 12/03/2006 - 13:15
lens tele extenders
John. The short answer is yes :D There are several teleconvertors available for Pentax K-mount. Look for an autofocus K mount and you can't go far wrong. (I have the Pentax 1.7xAF convertor which also allows autofocus when using older manual focus lenses. The quality is pretty good indeed.) Ther...
Posted by MattMatic on 24/03/2006 - 14:34
lens tele extenders
John. The short answer is yes :D There are several teleconvertors available for Pentax K-mount. Look for an autofocus K mount and you can't go far wrong. (I have the Pentax 1.7xAF convertor which also allows autofocus when using older manual focus lenses. The quality is pretty good indeed.) Ther...
Posted by Snapper on 24/03/2006 - 18:07
ist DL2
According to the ISO range for the DL starts at 200, which is pretty much standard for a DSLR these days. If you want a longer exposure in bright conditions you could always use a Neutral Density filter. But I'd have thought that with bright light you would be able to use nice small apertures...
Posted by Ammonyte on 17/04/2006 - 11:06
ist DL2
Hi Ammonyte, It is good, though I wouldn't take it down 5M.. :D The tapered section that you put your right hand in is single skinned HD nylon, but all other sections are double skinned and padded, probably 1/4" padding, so you shouldn't get problems with batteries except in the severest...
Posted by LiamD on 21/04/2006 - 20:26
Tempted to do a rude groyne joke here, but won't...
Nice picture Liam, I know Watchett via several geology field trips. As it happens I was down in Somerset at the weekend myself. Stopped off at Stonehenge on the way back, and took the usual picture postcard view. Pentax *ist DS 16-45mm AF lens, circular polariser and ND grad filter 1/45 at f16 ...
Posted by Ammonyte on 04/05/2006 - 20:50
No change using polariser - does Ist DS compensate for it
Maybe this question has already been asked but I don't see a change in using the polariser filter on the digital. Sure, through the viewfinder but maybe I need to bypass something when shooting so its effect can be noticed (I always shoot in manual mode, so that's not it) ... any ideas?
Posted by davidxgreen on 11/05/2006 - 09:55
No change using polariser - does Ist DS compensate for it
Hi David, I can't comment on the DS, but I use a D. From your question, it seems you can see the difference the polariser makes in the viewfinder, but can't see the effect shown on your images once viewed on screen. To be honest, I can't see that there's any way the camera can 'compensate' for ...
Posted by Daniel Bridge on 11/05/2006 - 11:27
No change using polariser - does Ist DS compensate for it
think of it like passing spagetti through a slotted spoon, and thats what a polarizer does to lightwaves. the longer, straighter and more uniform the light waves are the more will pass through the slot. the less uniform ones get blocked. most surfaces will absorb some of the light that hits it and e...
Posted by Don on 11/05/2006 - 13:35
No change using polariser - does Ist DS compensate for it
Thanks all of you for the input. Daniel, I think that's what happened, not that anything came out washed out but that the effect disappeared by the camera probably lessening the exposure time to compensate. In any event, I'd also completely forgotten about removing reflections from water - but I thi...
Posted by davidxgreen on 11/05/2006 - 16:22
No change using polariser - does Ist DS compensate for it
David, Your blue filter (80A) isn't really of any use because you should be colour balancing your camera to shoot under tunsten light, an added advantage of this is that you dont lose any light - with the 80A you lose around 2 stops. This of course applies to JPEGS. This is the reason that profes...
Posted by gartmore on 12/05/2006 - 08:17
No change using polariser - does Ist DS compensate for it
AFAIK the CCDs are panchromatic. This must depend partly on the quality of the bayer matrix filter (because the CCD just measures light levels, and the bayer matrix provides the split into RGBG - twice as many greens as reds and blues). As you say, all white balancing should be done with the came...
Posted by MattMatic on 12/05/2006 - 09:44
Infra Red Landscape
Just back from a week in the Lake District. I'm still wringing out the water from my underpants. I took a cokin IR filter with me and took this shot at Elterwater Pentax *ist DS, 16-45 mm DA lens, Cokin IR filter, 1/8 sec at f13 ISO400, handheld. Back to the drying out and sorting throug...
Posted by Ammonyte on 22/05/2006 - 21:21
Infra Red Landscape
Yes, it was the black and the white point ;-) I also added a few other adjustment layers in PS-CS2. I left the details on the PBase page: http://www.pbase.com/mattmatic/image/60653513/original Hope you approve :) ...now I must get myself a 100mm square IR filter... Matt
Posted by MattMatic on 23/05/2006 - 10:42
Infra Red Landscape
Dare I say it??? I found Matt's alterations a little over-powering for my own tastes! There, I've said it! Sorry Matt!! :lol: Anyway, as I can't just say that and not put up my own effort, here it is. Hope you don't mind Ammonyte, but it was nice to have a play with someone elses image fo...
Posted by Daniel Bridge on 30/05/2006 - 12:18
Infra Red Landscape
Aah, the old 'squiggle' filter! :) What is that, 'plastic wrap'? Or have I got the wrong end of the stick entirely? Interesting effect, none the less. It made me smile - there was I adding grain, when you were pleased that Matt had removed it. I was guessing that was more down to the jpeg arti...
Posted by Daniel Bridge on 30/05/2006 - 13:06
