Search results for 'uv filter' - page 158
Vignetting with an ND filter
Thanks pschlute, I will look at the video. Yes I used the SW150 adapter and had a go last night in Lightroom to reduce the vignetting, but it is the distortion that bothers me most.
Posted by RobL on 10/11/2017 - 07:16
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
I found this link which does seem to confirm that the overhang could be an issue https://www.dpreview.com/forums/thread/4003428 Thanks, that at least answers my queries. At least the lens can be fitted on the mount, and a vertical shift reduction from 12 to 10mm (with a bit of tape to stop marking t...
Posted by RobL on 20/11/2017 - 17:56
Samyang T-S 24mm F3.5 ED AS UMC Tilt/Shift
Ok, Samyang 24mm TS just arrived from SRS so here are first impressions. The vertical shift is just slightly inhibited on the K1 by the overhang but I don't think it is too big a deal. An engineer might be able to chamfer the edge on the lens mechanism but not me. On the K50 there is enough space fo...
Posted by RobL on 29/11/2017 - 21:51
Super taumar polarising filter
I am considering buyining a polarizing filter for my supertakumar 50mm 1.4 lens. I wondered if there was a difference between a modern polaring filter and an older one., in terms of how the filter affects the image. Regards
Posted by theonenadeem on 20/01/2018 - 15:08
Super taumar polarising filter
Can you define modern and older?! I still use Polarizers I purchased in the 1970's and they work just fine. I suspect what you mean by 'modern' are those described as circular. With some brands using those can make a difference (when indeed the non-circular may not work as expected) but I haven't...
Posted by JAK on 20/01/2018 - 18:18
Super taumar polarising filter
I think the main problem with older linear polarisers is that they may prevent the AF from working correctly. With a Takumar lens that wont be an issue.
Posted by pschlute on 20/01/2018 - 18:51
Super taumar polarising filter
I am aware that a film camera requires a polarizer filter (if thats the correct term)whereas a digital camera does not. There may be an assumption that the 60/70/80s film era polarizers are fit for purpose and may even be made from better materials Wheras modern day filters may be inferior in co...
Posted by theonenadeem on 21/01/2018 - 00:40
Super taumar polarising filter
I am aware that a film camera requires a polarizer filter (if thats the correct term)whereas a digital camera does not. There may be an assumption that the 60/70/80s film era polarizers are fit for purpose and may even be made from better materials Wheras modern day filters may be inferior in co...
Posted by JAK on 21/01/2018 - 01:15
Super taumar polarising filter
It may be a filter . I read , when using a film camera strong light can affect the image . And a filter is helpful. Regards Nadeem:
Posted by theonenadeem on 21/01/2018 - 03:18
Super taumar polarising filter
Don't use a filter for the sake of it, there's no point in adding more glass in front of your lens unless there is a purpose in mind. Almost all filter effects can be done in Photoshop, but with film obviously we need to use something physical to get the desired resuts. So, with black and white f...
Posted by johnriley on 21/01/2018 - 10:15
Super taumar polarising filter
I agree with all that's been written above . Based on what you have written yourself so far, then at this stage you should avoid all filters. Until you have studied up more on filters then using them is more likely to degrade your image quality rather then enhance it The most important accessory ...
Posted by McGregNi on 21/01/2018 - 18:21
Super taumar polarising filter
Thanks Jack,John,Mcgreni,Psclute. Regards
Posted by theonenadeem on 21/01/2018 - 18:38
Super taumar polarising filter
A bit more info here that you might find helpful from a very interesting and engaging photographer:- https://youtu.be/xvD-CKPceg0
Posted by Defragged on 21/01/2018 - 23:22
Super taumar polarising filter
I couldn't agree more about a hood. With=fantastic; without=frequently washed out. Also you can use deeper hoods with cropped sensor cameras which would almost certainly result in vignetting on a full frame job. On my (already deeply recessed) 50mm macro lenses I always use a Takumar style 49mm me...
Posted by davidwozhere on 22/01/2018 - 01:19
Lens repair in East Midlands?
Does anyone know of anyone that can do repairs on old manual focus lenses? (Or would anyone on the forum like to have a go for me?!) I was going through some boxes in the cellar, and sadly found that my lovely K 135/2.5 had been stashed in the pocket of a bag I had been using to carry my flash ge...
Posted by Pentaxophile on 18/04/2018 - 11:19
Wide options for the K1
The Irix 15 or Samyang 14 are great ultrawide lenses. The Samyang is really cheap but won't take screw in filters... after some deliberating I've decided I can live with that but give it some thought. Samyang do a filter holder system that takes 150mm square filters for about £25. The Irix looks ...
Posted by Pentaxophile on 11/05/2018 - 10:39
New Pentax D-FA 70-200 f4
How do you get a 70-200mm out of a 70-210mm????? ..... Cut 5mm off each end :shock: :mrgreen: -- It's the other way round. You stick 10mm on the end; requires an optical adhesive. The Pentax version does away with that so the glue isn't required. Did John miss that requirement out in his review...
Posted by JAK on 16/05/2018 - 15:20
Standard zoom options for the K1
I can share my experience using Tokina AT-X 28-70mm-f2.8 with K-1. It is the first version of these Tokinas, the one with light orange marking ring and 72 mm filter thread. I bought it long ago and occasionally used with K100d super as fast zoom. Later, with K5II I almost never used it, as 20-40 was...
Posted by Agrostemma on 15/05/2018 - 13:55
Standard zoom options for the K1
Another vote for the Tamron 28-75 f2.8 its a very compact, competitively priced lens. Especially in the second hand market. Very sharp, fast and light. I now have the Pentax 24-70 on my K1 and I will say, you pay a lot of money for an extra 4mm at the wide end.. And you gain a lot of weight and WR ...
Posted by stub on 15/05/2018 - 14:41
Standard zoom options for the K1
What you want is the Pentax new D-FA* Platinum Series 10mm-150mm f2.0 (a prototype I've been testing for them for a year or so now), it has a 49mm non rotating filter ring, weighs 232gm and is 84mm in length and targeted at a RRP of £249. I find it covers most needs - but until it's released you'll ...
Posted by LennyBloke on 16/05/2018 - 15:19
