Search results for 'uv filter' - page 2
Motordrive vs winder and other questions
A winder will typically deliver around 2 frames/sec, but a proper motor drive will give 5 or more frames/sec. The motor drive is for hard professional use. When I buy lenses, wherever possible I try to ensure the filter sizes are the same. If you stick with Pentax lenses this will be easier. Most...
Posted by johnriley on 12/10/2004 - 18:39
Motordrive vs winder and other questions
In most autofocus cameras a linear polariser is used as part of the AF module, which is why you need a circular polariser if you want to keep AF. However, some cameras also have a linear polariser as part of their metering system. That's as far as my knowledge goes, unfortunately I don't know wh...
Posted by mattie on 12/10/2004 - 19:25
Motordrive vs winder and other questions
The LX required a circular polarising filter for the metering to work correctly and it could be true of most SLRs which meter off the film plane. For the meter to work before the mirror is lifted light passes through a half silvered section of the mirror via a second small mirror to the light senso...
Posted by Dave_Evanson on 12/10/2004 - 20:25
Motordrive vs winder and other questions
Thanks for the details. At the moment the smallest diameter lens I have is a Tokina at 52mm, then the Pentax-A at 58mm and finally the Tamron at 62mm - a circular polarising filter (or any for that matter!) at that size isn't going to be particularly cheap. I shoot a bit of both B&W and c...
Posted by snib on 12/10/2004 - 21:55
Motordrive vs winder and other questions
The square Cokin-style filters have the drawbacks of being easily damaged and very susceptible to flare. Multi-coated glass filters are much better IMHO - I use SMC Pentax, B&W and Heliopan filters mainly. And a lens hood, which is cumbersome with square filter systems! It would be nice (but ...
Posted by johnriley on 12/10/2004 - 22:06
Polarising Filter - Which Type?
I have a Cokin polarising filter which is a left-over from my ME Super, but I'm not sure if it's the right one for my LX. I seem to recall reading on this forum that the LX requires a circular polarising filter to be compatible with the metering system; my filter has to be rotated in the Cokin hold...
Posted by Anonymous on 20/10/2004 - 20:58
Polarising Filter - Which Type?
All polarisers darken blue skies when rotated by polarising the light. Linear and circular polarisers do this is different ways that are relevant for certain exposure and autofocus systems. As the LX uses OTF metering it is quite likely that a circular polariser will be required, although I canno...
Posted by johnriley on 20/10/2004 - 23:23
Polarising Filter - Which Type?
Hi I've since found out that any off-the-film metering will not work with a linear polriser. Anyway, there should be a description on the polariser itself, the linear is designated 160 and the circular 164. There will be a single prefix, where A, P, Z or X will indicate the size of the filte...
Posted by mattie on 20/10/2004 - 23:28
Polarising Filter - Which Type?
Bugger! Thanks for the info Matt - I've just checked the filter and it is indeed a 160 and therefore linear and therefore unsuitable for my OTF LX. That explains all the white skies I was photographing this summer! I take it Cokin filters are still going strong (had mine over 10 years) and ...
Posted by Anonymous on 22/10/2004 - 17:23
Polarising Filter - Which Type?
Hi Baz Yep, Cokin filters are are still popular, and tend to appear in a lot of second-hand bins - can be a bit knackered, but might be able to pick one up cheap. They're not particularly expensive barand-new either, and they occasionally turn up in a kit which (for reasons unknown to me) can ac...
Posted by mattie on 25/10/2004 - 01:25
28-300mm zoom?
hi i use a sigma 28-300 IF lens with a 72mm filter size at 28 mm its ok at 35 its ok from there on I LOVE IT i have been using it mostly on the ist film i just leave it on and use it for almost even thing. Only just brought the ist D and havent given a real fair go in it yet cheers greg :D
Posted by just greg on 25/11/2004 - 08:17
PArts for an old mv
Most of the usual M series lenses take 49mm screw-in filters, but some take 52mm or other sizes. It's useful if most or all of your lenses take the same size of filter. The pentax-M lenses that take 49mm filters, from memory, include 20mm, 28mm, 30mm, 35mm, 40mm, 50mm, 85mm, 100mm, 135mm, 150mm. ...
Posted by johnriley on 25/12/2004 - 19:39
ME Super- Jammed Shutter- Help!
Hi- Hope you can help. Pentax ME Super on 19/2/05. Taking 2nd Picture on new roll of film, Just changed to Polariser filter, when I looked through viewfinder it was totally black. Shutter appears to be locked/jammed open since then. Any help most appreciated. Cheers: dm
Posted by Anonymous on 21/02/2005 - 08:39
Filter help please!
Hi all, still quite new to all this, hence my question: I'll just got a couple of filters for my ME Super- including a Dual Color R/B (Red/Blue) and an 85c. Both Screw in. er, what is it they actually do, and how do I have to "adjust" my settings to use them? Cheers in advance guys.
Posted by Anonymous on 07/03/2005 - 16:13
Filter help please!
An 85C will be a colour correction filter - no auto white balance on film cameras so you adjust the colour temperature by use of filters. The red/blue is an effect filter, to give red filtration to one half of the picture and blue to the other half. For colour film it will give colour casts, for...
Posted by johnriley on 07/03/2005 - 16:37
Filter help please!
Ok, thanks for that. I've got 4 film awaiting processing so I guess I'll see when I get them back what the results are like.
Posted by Anonymous on 08/03/2005 - 10:07
Best all around black & white film
I loved the extended red sensitivity of Ilford SFX200. Use it with the red filter for near infrared effects - or without a filter as a normal B & W film. I used nothing else in my Rolleiflex in the last few years. Now I have a Pentax DSLR, if I buy an old 35mm body for fun/spare that's ...
Posted by Terry1100 on 30/05/2005 - 18:00
full size CCD for SRL digital?
Dave, Don't forget: Sigma = full frame. Real gelatin filters. "Pop-eye" front. Tamron = APS field. 77mm filter. There's a Pentax 12-24 coming... I'm waiting for that :D Matt
Posted by MattMatic on 09/07/2005 - 14:35
ISO 50
Buy an ND4 filter ;) or... one circular polariser and one linear - stack them up and you have variable ND control :D Matt
Posted by MattMatic on 08/08/2005 - 21:31
dSLR and rain
Don't get it wet!!!! Use an umbrella, or a plastic bag. Put the bag around the camera, screw a filter into the lens through the bag, carefully remove the bit in front of the filter, and DON"T GET THE CAMERA WET!!
Posted by Arthur Dent on 21/08/2005 - 15:49
