Search results for 'uv filter' - page 109
looking for a 1.4 or 1.8 prtrait lens
... and what is wrong with 49 mm filter diameter? Smaller filters are a lot cheaper. I am glad I wasn't the only person wondering that. :? K.
Posted by womble on 27/05/2010 - 17:23
looking for a 1.4 or 1.8 prtrait lens
... and what is wrong with 49 mm filter diameter? Smaller filters are a lot cheaper. The larger the front element, the less likely there will be vignetting... or some other such undesirable. I'm not an expert on such things, but some review site explained it all in their review of the (77mm front el...
Posted by MrCynical on 29/05/2010 - 00:30
Sigma 24-70mm.
I have the early 24-70 EX DG, it is sharp and focus is fast and accurate, there's only minor distortion at 24mm, the filter size is 82mm (expensive). It's heavy but very well built, handles nicely with the K20d + grip, it behaves a bit like the A 35-105/3.5 did on film, but on digital...........a go...
Posted by johnwhit on 13/06/2010 - 09:59
Scratch front SMC-A 35-105
That looks very much like the one I sold to someone in Liverpool on eBay a couple of months back - is the serial number 5793755 by any chance? If so the scratches came from the owner prior to me dropping it with a UV filter on and that's from the shards of glass. If it's any consolation I tested it ...
Posted by hefty1 on 31/05/2010 - 23:37
Scratch front SMC-A 35-105
I was just about to say that those marks looked like they had been inflicted by a so-called protection filter
Posted by gartmore on 01/06/2010 - 10:29
Scratch front SMC-A 35-105
I was just about to say that those marks looked like they had been inflicted by a so-called protection filter That's one of the reasons I don't use them.
Posted by Mannesty on 01/06/2010 - 11:37
Scratch front SMC-A 35-105
That looks very much like the one I sold to someone in Liverpool on eBay a couple of months back - is the serial number 5793755 by any chance? If so the scratches came from the owner prior to me dropping it with a UV filter on and that's from the shards of glass. If it's any consolation I tested it ...
Posted by bjolester on 01/06/2010 - 19:20
What lens hood?
The trouble with many aftermarket rubber or plastic hoods and, indeed Pentax hoods for some older zooms, is that they have to accomodate the wide end and consequently dont offer much protection at the tight end. There are a lot of petal ones on ebay but I had one and found it to be an awful fiddl...
Posted by gartmore on 03/06/2010 - 17:29
Pentax SMC A lens 50mm 1:1.7
Just passed my local Oxfam and in the window was this little pentax lens the only details were 50mm,A,SMC 1:1.7.Has both caps and the previous owner had a Hoya skylight filter on it.Just gave it a quick glance and couldn't see any scratches just finger prints!! Now will this work with my K10D ? A...
Posted by pentaxboyo on 03/06/2010 - 19:46
Pentax SMC A lens 50mm 1:1.7
at £25 bite their hands off. Then throw the filter away, and enjoy a loverly little lens.
Posted by flossie on 03/06/2010 - 19:59
300mm M42 F4 lens
[quote:3496ace15f="Algernon"]Be careful with Sigma's they have a bad reputation for element separation, usually starts with the lens going a bit cloudy. There is someone on the US forum uses 165mm 6x7 lens plus 2x converter and gets really good results, so good I thought of getting one myself. ...
Posted by johnwhit on 11/06/2010 - 12:34
How long do Tamron take to fix a lens under warranty?
I also tightened my front element (although at the time I thought it was just the filter ring I was tightening :shock:). Feels much more solid now.
Posted by thoughton on 11/06/2010 - 09:50
The Sub £50 Lens Guide
As my lenses are nearly all in the sub £50 bracket I won't try to class them as truly good or bad. However I've been plesantly supprised with these: Tokina 80-200mm (SZ-X 200) PKA f4.5-5.6 macro zoom (£15 e-bay) Cosina PKA 100mm f3.5 Prime MACRO Lens (£50 Rocky cameras...
Posted by petrochemist on 23/06/2010 - 11:01
macro
Reso - you mention that you are on a limited budget (how much?) and that you wish to maintain automatic metering. AE will rule out some of the cheaper options such as extension tubes (PKA tubes are hard to get and expensive when you find them) or some of the older MF lenses unless they have AE. ...
Posted by JonSchick on 02/07/2010 - 13:26
Lens hood for 50mm FA 1.4?
might be a stupid question, but can you still put a filter on with those after-market hoods?
Posted by flossie on 03/07/2010 - 08:03
Lens hood for 50mm FA 1.4?
might be a stupid question, but can you still put a filter on with those after-market hoods? Flossie, You just screw the filter onto the bottom of the hood and then screw it onto the lens, so yes filters can still be used.
Posted by Clarky on 03/07/2010 - 11:08
SMC coating colours.
The coating on the glass is acting as a dichroic filter, which without getting into details of the physics, is making it appear as green or purple depending on the angle you are looking at it. Note how on your lens picture above, it goes from green to purple as the glass curves away from you at diff...
Posted by flossie on 05/07/2010 - 22:25
SDM failures horror stories
Stefan - if you want horror stories go to the american Pentax site. Everyone there who has ever had an SDM lens has been killed by it and those who have more than one have had multiple deaths. It seems that when they go critical, they can take a whole state out. Put me down for four deaths please...
Posted by Oggy on 05/07/2010 - 21:49
pentax M vs pentax A
Does the F1.4 F1.7 F2 difference justify the price difference? If I recall most of the time when being outside on a sunny day I couldnt use the F2 as the camera would need to shoot at 1/50,000s or so and think the max was like 1/30,000s... does that make sense? Remember you can now adjust the ISO on...
Posted by flossie on 07/07/2010 - 10:04
M 50mm fungus?
I've opened up f1.7 and f2 versions of this lens, guessing it'll be one of those as even fungus-riddled f1.4s go for more than £20! First work out which elements are affected - all three of the ones I dealt with had fungus on the front element of the rear group, so I simply had to unscrew the fin...
Posted by Dangermouse on 07/07/2010 - 22:03
