Search results for 'uv filter' - page 65
Filters & Light Refraction
....and today's silly brought to you by Mac - who's awaiting 5 eBay deliveries for his Spotmatic adventure, and thought he'd waste your time here rather than keep shopping - much less costly. (Oh, I finally found a Spotmatic Eye Cup!) If I understand correctly, the coating of lenses was first d...
Posted by Anonymous on 12/10/2005 - 13:05
Filters & Light Refraction
Yes, I've found filters to affect the image quality. For example, had a cheap 49mm UV filter on the SMC-F 70-210mm, changed it for a Hoya Pro-1 (99.7% light transmission they say), and the contrast was muchly improved... didn't try comparing against the lense minus the filter sadly. Apparentl...
Posted by MattMatic on 12/10/2005 - 13:33
Filters & Light Refraction
B&W was already a favorite of mine and now you tell me they make good CAMERA filters too? I know they filter their scotch to perfection - so why not? OK, Hoya and Kenko Pro, B&W and of course the rare Pentax are top of my list.
Posted by Anonymous on 12/10/2005 - 20:14
Filters & Light Refraction
They can be, George. I only use filters where necessary these days, and with digital cameras that's not much! Mainly down to Tri-X and a red filter for film....
Posted by johnriley on 12/10/2005 - 22:24
Filters & Light Refraction
A HA! George is about to save me a WHOLE bunch of money. Goerge, if I've got SMC Pentax lenses, and am using them under the proper conditions, I should take the protective UV filter OFF and simply be careful? I have nice hard sunshades for my 135 and 200 Super Taks which should protect my len...
Posted by Anonymous on 12/10/2005 - 22:35
Filters & Light Refraction
Every filter in the world, no matter how well made or expensive, will degrade your image to some degree. Cautious people slap cheap filters on their lenses to protect them. I prefer to take a little care and get the full benefit of my expensive glass. You can apparently stub a cigarette out o...
Posted by George Lazarette on 13/10/2005 - 00:05
Filters & Light Refraction
You're BOTH right! Cheers! Glad I could be of assistance, perhaps you could return the favour and tell me where the heck the remote control for my VCR has got to........again :evil: Like most people, I normally find it lurking down the side of the sofa but this time, the house-goblin has really...
Posted by Kimbo on 13/10/2005 - 03:58
Filters & Light Refraction
Nots' to worry Mac, I've found it :D The sneaky little devil hid it between the sofa cushions, it had been missing for two days and trust me, apart from looking everywhere else, I'd all but taken that sofa apart. I'd removed the cushions, tipped the sofa upside-down and even checked inside the ...
Posted by Kimbo on 13/10/2005 - 15:33
Filters & Light Refraction
Hi Mac, The choice of filters is a difficult one and ultimately will depend on how you intend to use the camera and your choice of film. If you keep a lens cap on for most of the time and only remove it to take a photo, you probably don't need a filter. I tend to leave the cap off most of the time ...
Posted by Kim C on 14/10/2005 - 12:45
Filters & Light Refraction
One filter you'll always need to have on hand is the polarizer. To re-create the effect in Photoshop is just too much work! Besides, you can use a linear polarizer in front of a circular polarizer to make a continuolsy-variable ND filter. The problem is you now have four extra surfaces to keep ...
Posted by Arthur Dent on 14/10/2005 - 13:49
Filters & Light Refraction
Well it sounds as though we've gone full circle on the question of filters and to sum up, 1) minimise the possibility of image degradation by using good quality filters. 2) if you're not trying to correct for a particular lighting characteristic, then for maximum image quality you're probably be...
Posted by Kimbo on 14/10/2005 - 15:07
Pentax Ghostless Filters
With Halloween fast aproaching, I thought this topic might fit right in. Was looking through an old Asahi Pentax booklet on SMC lenses that must have come with every new Spotmatic F, and when I paused to mop up the drool, I noticed on one of the last pages, a diagram and description for their gho...
Posted by Anonymous on 28/10/2005 - 10:33
Pentax Ghostless Filters
Hi Mac, I have seen one and although they were a good idea at the time , they soon became outmoded. They were not multicoated but curved. The idea was that any reflections were pushed outside the filter by the curvature rather than inside as would happen with a flat filter. With the advent of be...
Posted by Kim C on 28/10/2005 - 11:12
Pentax Ghostless Filters
The "Ghostless" filter not only had a curved surface, but a curve that matched the curve of the fron element of the Taakumar series 50mm/55mm lenses. This may or may not have worked, but as later standard lenses have different cirves to the front elements, it's sort of obsolete for these anyway. ...
Posted by johnriley on 28/10/2005 - 16:19
Just ordered the Tamron 70-300 Macro
I use mine on a Pentax ist DS, and think it is great. I would have liked it better if the lens shade had the removable door for using a circular polarizer filter, and it was the petal type. But otherwise I would not change anything. Yes a lens tripod support would have been a nice addition.
Posted by joelw135 on 14/11/2005 - 14:46
Asahi M42 35mm 1:2.3 lens from 1959
Anyone had experience with the above rare bird? Takes a 62mm filter - big piece of glass for a 35mm.
Posted by Anonymous on 08/11/2005 - 23:07
Asahi M42 35mm 1:2.3 lens from 1959
Hi Mac, It does not take a screw in filter but a funny 70mm clamp on one which fits in the middle of the 2 part hood. An interesting lens which is a genuine true retro focus and one of the first. If you unscrew the front element, you can use it as a macro lens! It was a very good performer for it's...
Posted by Kim C on 09/11/2005 - 09:13
Asahi M42 35mm 1:2.3 lens from 1959
Well, I just Friday got a Pentax SV outfit with 55mm,135mm Super Taks. a 300mm Tamron f5.6, copypod,small flash, Komura doubler and an f2 35mm Super-Takumar with a HUGE front element and 70mm filter thread all for £25 (don't tell the WIFE! She keeps telling me I've got ENOUGH PENTAX's!). I was comi...
Posted by Peter Elgar on 20/11/2005 - 21:40
135mm Upgrade from f3.5 to f2.5.
Just got my hands on a MINT, New, Unused, 1:2.5/135 Asahi Pentax Super Takumar. I have been shooting with a 1:3.5 Super Takumar and have been absolutely stunned with the results. I'll have to do a roll of comparison shots of course, but thought I'd ask the experts here, what to look for. B...
Posted by Anonymous on 09/11/2005 - 22:47
Circular vs Linear Polarizing Filters
Circular polarisers filter the polarised light in the same way as linear polarisers (and so still need rotating in the normal way) , but then they 'scramble' the filtered light afterwards so as not to fool autofocus and AE sytems that use half silvered mirrors. Calling them circular polarisers ...
Posted by amilner on 18/11/2005 - 10:08
