Search results for 'uv filter' - page 50
UV ghostless filter
The ghostless filters are, I believe, of the M42 Takumar era and were curved to do exactly that, be ghostless. To be effective the curve should be the same (?ish) as the front element. I doubt the M50/1.4 is the same, but it is probably close enough as to make little difference. Try taking a ser...
Posted by womble on 24/12/2013 - 21:54
UV ghostless filter
Why oh why do people waste their money on supposed UV filters? Most glass absorbs all but the longest wavelength UV light (UV-A). What are our lenses made from? Yes, glass. Ever wondered why you don't get sunburnt while driving your car? UV light is what causes sunburn, and UV light doesn't pa...
Posted by Mannesty on 24/12/2013 - 22:56
UV ghostless filter
The UV filter was originally intended to cut through haze. Haze is caused by the scattering of blue light by water droplets in the atmosphere. This reduces distance clarity before any light gets to the lens. The UV filter removes the affected light and allows us to see better into the distance. ...
Posted by johnriley on 24/12/2013 - 23:38
Circular Polariser
also if using on wide or ultra wide you need a slim bodied version to reduce the chance of vignette . In fact there are some ultra-wides where it is impractical to fit any kind of polariser - my Samyang 14mm falls into that category. Of course, for wide shots with big skies a polariser can be a two-...
Posted by McGregNi on 05/01/2014 - 20:10
Circular Polariser
[quote:3496ace15f="autumnlight"]Hi i'm looking to buy a circular polariser as the one i'm using is linear (i think), what's confusing me is the difference in pricing from over a £100 to the one i'm looking at buying a Hoya for £14, is this because of the coating? i've seen a similar post on here but...
Posted by JAK on 06/01/2014 - 00:45
London Tube pics from 70s and 80s
London Tube pics from 70s and 80s You know we spend a lot of time arguing the toss about the tiny minutiae of differences between AA filter and no AA filter and the various characteristics of various lenses and other nonsense ( and I happily admit I'm just as guilty as anyone else ) , but at the ...
Posted by Smeggypants on 10/01/2014 - 07:49
London Tube pics from 70s and 80s
These are all quite appalling.... I would sooner look at paint drying! :mrgreen: Agreed! ... and just imagine now, if that paint was shot with a high resolution sensor with aa filter simulat ..... :o
Posted by McGregNi on 10/01/2014 - 11:55
What a mistake - the poor Pentax K-3 manual
I recently purchased a KIIs from another member and the manual supplied was for a K5 and in French :shock: Working on the assumption the only major difference between the K5 and K5IIs was the absence of the AA filter it wasn't a hanging offence. I'm also assuming the usb cable and video cable are co...
Posted by tyronet2000 on 21/01/2014 - 15:54
What Reason Makes U insist on Pentax's Camera
I started in 1970 with my first Spotmatic. At the same time I had abunch of Leica equipment. But the Spotmatic was my first SLR. It had a 55mm f1.8 super Takumar lens. I found the SLR just fantastic. Through the lens metering, No worries about filter factors, or using extension tubes. I was hoo...
Posted by Horst on 03/02/2014 - 10:58
What Polarizing Filter
I have bought 5 different sizes of Polarizing filters. They are of the circular kind. From what I read, the digital cameras need circular types. I have a K5, so they should do the trick. The question is, when I want to use Polarizing filters on my Film Cameras. ( I still use them sometimes), ...
Posted by Horst on 21/02/2014 - 05:29
What Polarizing Filter
From memory, I believe the Pentax metering sensors required Circular. Other brands - linear or Circular. If you have a camera without metering then either - just allow for it when you use a stand alone meter or estimate the exposure.
Posted by Gamka on 21/02/2014 - 08:59
What Polarizing Filter
The circular ones will be fine. Personally, I prefer the linear ones, they seem to have more effect, although I've never tested that to see if it is true or just a false impression. K.
Posted by womble on 21/02/2014 - 09:23
What Polarizing Filter
Thanks for the explanations. looks like I worried to much. I'll just use them on both types of camera. Regards, Horst
Posted by Horst on 21/02/2014 - 10:40
Slimming lens
There is a slimming digital filter in the playback menu on my K100d, I've never used it but worth a try ...jeff..
Posted by jeffstclair on 01/03/2014 - 15:58
Slimming lens
Theres a filter in Photoshop that should help. Here is a picture of my wife on the beach in Wales last year ... behind her you can see a group of her female friends forming a queue down to the water.
Posted by Mike-P on 01/03/2014 - 16:06
Slimming lens
I have an Optio with a digital slimming filter built in, considering how desirable this feature appears to be I could be open to serious offers.
Posted by gartmore on 01/03/2014 - 17:00
Pentax owners award
I think that if I didn't have an Anti Alien (cat) filter (aka cat flap), I'd have six. As it is I have three so the AA filter obviously cuts down the appearance of fur in my house :D
Posted by JonSchick on 06/03/2014 - 22:00
Backpack recommendation please
Sorry, I know there is another thread on bags at the moment, but I have a more specific question so didn't want to kidnap Mike's thread. Does anyone have a recommendation for a good 'day' photography backpack for hiking? Something with room/compartments for photo kit plus space for waterproofs a...
Posted by Northgrain on 22/03/2014 - 16:43
Pentax Auto 110
Greetings Folks, Anyone here got any idea of the value (if any?) of a Pentax Auto 110? comes with 1 x 2.8 24mm lens & 1 x 2.8 50mm lens both of which have skylight filter; also has with it a Pentax AF100P flash. Is film still available for this? Replies appreciated. Regards, Larry.
Posted by Bobbinalorry on 02/04/2014 - 16:16
Filters
Hi All I'm looking to upgrade my filter system from the rather cheap one I have to "something" else. I'm thinking about Lee but obviously it is a bit pricey but familiar enough to know where the quality vs price balancing point is. On a slight tangent I'm also looking at CPL's and have noticed...
Posted by Harlequin on 09/05/2014 - 13:19
