Search results for 'uv filter' - page 74
"Upgrade" at zero cost!
To use, or not to use, filters on the front element has been discussed many times before here, and can essentially be summed up by the following:- Pro's use lens hoods, not filters, to protect their lenses. Amateurs/enthusiasts tend to use filters, and not lens hoods. I fall very much into the...
Posted by Mannesty on 01/09/2007 - 14:39
"Upgrade" at zero cost!
I prefer to keep my "protective" filters in place, not so much because I'm worried about knocking the front element but more for ease of cleaning, I would sooner be constantly cleaning a filter than the lens, plus out in the field I have no problems if I find myself having to clean the fro...
Posted by fatspider on 02/09/2007 - 11:13
"Upgrade" at zero cost!
I've actually seen a strange problem where a UV filter causes the green channel to clip on the S20Pro. It may be coincidence but, it seems to happen only with the filter on. The sensor has a huge dynamic range but that seems to vanish.
Posted by Tyr on 02/09/2007 - 12:04
"Upgrade" at zero cost!
I find the effect of the UV "protective" filter varies from lens to lens. I'm not sure why this should be, but my SMC-FA 80-320 and Tamron 90 F2.5 seem to particularly hate them, while most of my other lenses only suffer from problems in extreme conditions.
Posted by Mongoose on 09/09/2007 - 11:10
"Upgrade" at zero cost!
I think Matt has had an experience where a filter shattered and almost destroyed the front element of one of his lenses. Not once... but twice :roll: :roll: Now it's hoods always. They cost as much as a good filter, but they don't splinter nearly as much and protect the lens far more! but can ...
Posted by MattMatic on 10/09/2007 - 08:28
SMC-FA 80-320 diagram
Kim, To do complete images, I'd have to take it apart again... which isn't a big deal ;) I used some CCD cleaning fluid as my Eclipse fluid wasn't at home at the time. Needed a nice soft cloth (used a Lee filter cloth) and it polished up very nicely indeed. In fact, when assembled there's absolu...
Posted by MattMatic on 25/10/2007 - 17:13
Carl Zeiss Lenses about to be released in K mount
Hi, The Contax Zeiss 28mm f2 was part of the initial RTS range of lenses, so was introduced about 1975 with the first lenses. It was VERY expensive and only sold in relatively small numbers and is very highly regarded amongst Contax enthusiasts (like me). It has floating elements to aid close...
Posted by bretbysteve on 25/09/2007 - 11:23
Carl Zeiss Lenses about to be released in K mount
Hi, The Contax Zeiss 28mm f2 was part of the initial RTS range of lenses, so was introduced about 1975 with the first lenses. It was VERY expensive and only sold in relatively small numbers and is very highly regarded amongst Contax enthusiasts (like me). It has floating elements to aid close...
Posted by George Lazarette on 25/09/2007 - 11:29
Carl Zeiss Lenses about to be released in K mount
As for the comparison of the Pentax K 28/2 with the Contax Zeiss 28/2...they both have 9 elements in 8 groups, both have close focus of 0.25m, Zeiss weighs 485g, Pentax 423g, Pentax size 62.5x69mm Zeiss 62.5x76mm, Pentax 52mm filter, Zeiss 55mm filter, both have floating elements for close-ups, and ...
Posted by distudio on 25/09/2007 - 13:43
Carl Zeiss Lenses about to be released in K mount
Just to take things a little further. In a conversation with George on another topic, I offered to shoot a comparison between the 31L and the original K mount 28/2. As Steve says this was almost identical the the Zeiss lens for the Contax. I have uploaded the files to my website and you can access t...
Posted by Kim C on 30/09/2007 - 20:57
Cosina 20mm lens ?
I think the Cosina 20mm F3.8 is actually the same lens as Vivitar sell as a 19mm F3.8. If so then I used to own one of the Vivitar versions and here's what I had to say about it in a review written at the time: Build Small, light and compact, with a 62mm filter ring, This lense does not inspire ...
Posted by niblue on 25/09/2007 - 13:17
SMC Pentax-DA* 16-50mm - Sample Images
Having had this lens for a while now, and made quite a few 'test' shots, I can confirm what has been said on other forums, and that is that at 16mm and wide open, the lens exhibits a very noticeable amount of vignetting. My test shots to prove this were of a white, evenly lit, wall with no filter o...
Posted by Mannesty on 15/10/2007 - 18:27
67mm filters
I was thinking of purchasing these set of filters for my DA16-45 I realise they may not be top shelf but the price seems ok. What do you think am i wasting my money or is one filter as good as the next :?: Thanks Coming into summer and we will have some very bright sunny days ahead.
Posted by Clarky on 26/10/2007 - 17:41
67mm filters
One filter is cetainly not as good as any other! As with so many other things, you get what you pay for. Now my preference is for the B+W MRC filters although I will use the SMC Pentax ones when available. The filter needs to be optically transparent or it will distort your image. It should also be ...
Posted by Kim C on 26/10/2007 - 18:24
67mm filters
Can someone tell me what the difference is between these 2 polariser filters :?: HOYA 67mm Circular PL CIR Polarizing filter CPL (blue packaging) HOYA 67mm CIR-Polarizing Filter (green Packaging) Thanks
Posted by Clarky on 29/10/2007 - 21:51
Gulp!
colonialgirl.... adding grain in pse is easy. in the pulldown menu, goto Filter>Noise>add noise... from there I'd suggest mono and play with the settings. if you work on a duplicate layer, you can also play around with your opacity and blend modes to get more effects (screen and multiply a...
Posted by Don on 29/10/2007 - 22:44
Gulp!
Just to add to Don's suggestion... You get much more control if you use Layers ;) (There's some PSE tutorials on layers on my website) * Add a new layer * Fill with 50% gray (or grey if you're in the UK :P) * Then use Filter/Noise/Add Noise * Change the layer blend mode from "Normal"...
Posted by MattMatic on 30/10/2007 - 08:33
Pentax 35mm f2
I just received a used Pentax 35mm f2 lens in the box with Pentax UV filter Pentax Lens Bag and Owners Manual. All in mint condition. Paid $275.00 dollars for it on Ebay. As I am reasonably new to the Pentax line (Since June 07) Was this a good deal ? Is it as rare as some state ? (At le...
Posted by hotshots4u2c on 03/11/2007 - 17:52
Pentax 35mm f2
I am pretty happy with the cost, especially as it looks like its had no use at all and came with the Pentax UV Filter, plus the box, lens bag and manual. Everything mint. RG.
Posted by hotshots4u2c on 04/11/2007 - 22:52
Pentax 35mm f2
I read a review on the Super-Takumar 35mm f2 by Ron Spillman who said it was tack sharp- at the time they were unavailable in UK; I got David Leung the dealer to import one for me when he went to Hong Kong- it cost £69 new, inc duty and tax. Well, I used it on press jobs with my S3 and Spotmatics an...
Posted by Peter Elgar on 02/12/2007 - 18:43
