Search results for 'uv filter' - page 117
UV filter or No UV filter?
You mention you've got a Polariser - these are very useful when shooting outdoors in bright sunshine, although more fidderly to use and take a bit of practice, but well worth while. I hope its the "Circular" not "Linear" type, otherwise they can be a pain if your front element rotates when focusing ...
Posted by Daniel Bridge on 16/10/2010 - 16:26
UV filter or No UV filter?
We did some test with a linear polariser so far as we know it only effects the exposure metering. With Pentax the AF seems to be unaffected.
Posted by Anvh on 16/10/2010 - 17:01
I just bought an SMC Pentax-A 50mm f1.2
An f1.2 Crikey!!! I hope it's OK. Won it on Ebay yesterday for £249. I don't even know if that's a good or bad price. I've never seen any others to provide a benchmark. I just had a yearning to try some shallow depth of field shots and apart from a shitty old Rikonar 55mm f2.2 I had on my Rico...
Posted by Smeggypants on 15/10/2010 - 00:51
I just bought an SMC Pentax-A 50mm f1.2
this might be of interest if you fancy trying to get rid of the ding yourself: Well tapping a lens with a hammer will certainly disturb all the dust and possibly a few elements :lol: The pros will have proper tools to straighten a filter thread. I regret not buying one of these 10 years ...
Posted by Algernon on 15/10/2010 - 10:21
I just bought an SMC Pentax-A 50mm f1.2
I wondered if anyone was bidding on that - was amazed it didn't go for more! It's a very sought-after lens. I was really surprised no one else bid on it. It was a bit disconcerting as items like that normally have some early suck it and see interest. I did bung in a bit more than the start price, ju...
Posted by Smeggypants on 15/10/2010 - 16:24
I just bought an SMC Pentax-A 50mm f1.2
Cheers Still27 :) Well here's my mini review. Snatched postman's hand off in the early hours and hurriedly opened a 50mm lens sized box and inspected it. Aperture lever and blades open and close without problems. Overall cosmetics is better than the photo depicts. focus ring is tight and smoo...
Posted by Smeggypants on 17/10/2010 - 22:04
Is there a term for this ?
You will notice the chimmneys are splayed out a little bit as well, This can be corrected in photoshop using the lens correction filter or perspective correction in Free Transform. If you were at the same level as the ball and took the photo you would not get the perspective change, caused by the...
Posted by surfseen on 20/10/2010 - 03:21
The ten quid lens thread.
I got a dead Spotmatic with standard 55mm f1:1.8, a Paragon 135mm F2.8, Soligor 35mm F2,8 a couple of flashes and a filter for £10, do they count?:D
Posted by Hardgravity on 23/10/2010 - 17:59
The ten quid lens thread.
I picked up a Miranda 70-200 F4 zoom in pristine condition from a camera fair in Guildford not long back - some initial tests showed it was not bad at all, though I am skeptical if it really is a constant F4 (it could be - it has a 58mm filter thread - but exposure does seem to change when zooming a...
Posted by amilner on 30/10/2010 - 10:30
The ten quid lens thread.
I'm sure some of mine will count, but some are a little less clear cut... The first two should qualify: Photax Paragon M42 28mm f2.8 £5 (even with a skylight filter & case) Cosina PK 35-70 zoom FOC - with camera too! Then there's some telconverters (do they count?): Clubman PK macro focusin...
Posted by petrochemist on 12/11/2010 - 23:46
The ten quid lens thread.
G`day, just received a delightful M 1:2 50mm Pentax lens with skylight filter ( Rolev MG ) front & rear caps - very clean and tight - £9.99 on fleabay - I`m pleased...................... Tony
Posted by TOZZA27 on 11/05/2011 - 14:15
The ten quid lens thread.
G`day, just received a delightful M 1:2 50mm Pentax lens with skylight filter ( Rolev MG ) front & rear caps - very clean and tight - £9.99 on fleabay - I`m pleased...................... Tony Can beat that - same lens for a fiver with a bit of fungus which took all of five minutes to clean out...
Posted by Dangermouse on 11/05/2011 - 15:31
vignetting with 18-55 AL
Here's a picture taken with my K-x and the 18-55 mm AL lens that came with it. It shows a lot of vignetting in the top right and left corners. Would the 18-55 mm AL WR do the same? Is there a better lens I should consider for general use (given a budget of around 500 US$) Personally I wouldn'...
Posted by user_removed on 24/10/2010 - 21:36
500mm and a converter? What are the pitfalls if any?
Just a small thought or two: The eb*y seller does not say what the filter size is. Some large filters are common sizes and cheap - some are rare sizes and a filter will cost you more than the lens. Ask him quickly and check. The ad is a touch odd. It says T2 mount and T mount (and original T mou...
Posted by DoctorJeff on 30/10/2010 - 10:47
500mm and a converter? What are the pitfalls if any?
Just a small thought or two: The eb*y seller does not say what the filter size is. Some large filters are common sizes and cheap - some are rare sizes and a filter will cost you more than the lens. Ask him quickly and check. The ad is a touch odd. It says T2 mount and T mount (and original T mou...
Posted by SmutjeUK on 30/10/2010 - 11:04
M 50mm 1.7 Fungi???
For future reference, the finishing ring and the front element group both screw into the filter thread (which extends further into the lens barrel than you can see with the lens assembled). The finishing ring acts as a locknut to keep the front group from unscrewing itself. I've rescued three 50s...
Posted by Dangermouse on 02/11/2010 - 22:27
Fun with Fungus.!
Unscrew the ring, in an anti-clockwise direction. Now we can remove the filter threaded front tube. This is done by removing the three little screws, highlighted with white paint, in the picture above. To be continued... Much later!
Posted by mowog on 07/11/2010 - 19:47
Fun with Fungus.!
You don't actually need to remove the filter threaded part or indeed the bayonet mount - the element groups will unscrew anyway. Be careful using washing up liquid as some of them include additives designed to make glasses shine - great for impressing the mother in law at xmas dinner but not suc...
Posted by Dangermouse on 08/11/2010 - 08:08
Fun with Fungus.!
Thanks, persons all. DM. You need not remove the mount or the filter tube, if you have a lens spanner. I am too mean to buy one (good ones are expensive!), so it is necessary to remove those parts, in order to get the access and grip needed for removing the element retaining rings. The method of...
Posted by mowog on 08/11/2010 - 19:27
Fun with Fungus.!
I don't think the cemented elements can be helped on a DIY basis for the reasons people mention, they need a lot of precision when re-gluing. Older lenses are easier to work on as in general the parts will drop into the correct alignment and then stay there while you tighten things a little more ...
Posted by Dangermouse on 08/11/2010 - 22:39
