Search results for 'uv filter' - page 274
Long exposure artefacts
I can see the band - it curves down towards the centre and is most obvious on the second rock from the left in the foreground. Given the curvature, I would guess it is connected with a possible reflection off a filter rim. Is it possible you could try taking similar images without the polarise...
Posted by Gamka on 02/09/2013 - 17:40
Filter woes
Experimenting with the hitech 10 stop and three images came out like this. Any ideas what went wrong? The only thing I can think of is, I'd put the filter in askew allowing a light leak. K5 f/16 8secs 18-135 @ 18mm
Posted by tyronet2000 on 27/09/2013 - 20:43
Filter woes
Gosh. Not sure... my thoughts are: was it raining, giving droplets on the filter? was the viewfinder covered (otherwise light could leak in through that) and was the filter as close to the front of the lens as you could get it? otherwise you may have got some reflection from the back of the filter i...
Posted by matwhittington on 27/09/2013 - 21:06
Filter woes
For whatever reason, the diaphragm is reflected back onto the filter. It might be caused by a particular light source angle, or so many other reasons...:?::?::?:
Posted by pentaxian450 on 28/09/2013 - 01:28
Filter woes
Did you cover your viewfinder, also is it a screw on filter, if it slides into a holder there is potential for light ingress
Posted by sandinista on 28/09/2013 - 07:38
Filter woes
It is almost certainly light creeping in behind the filter - how did you mount it and was the gasket compressed? It apparently has a blue cast - which you might need to tweak with White Balance settings. As for the spots ???? They are not regular or symmetrical in any way - either on a p...
Posted by Gamka on 28/09/2013 - 07:49
Filter woes
Thanks for all the suggestions. If I put them all together I'll probably arrive at the solution to what I did. Went back later and tried again. Things I did check were the filter was in the holder straight and the gasket as far as I could see was tight all round and viewfinder was covered. I kn...
Posted by tyronet2000 on 28/09/2013 - 08:51
Filter woes
Seems to be sorted ... just need to tweak the white balance an save that as a specific setting.
Posted by Gamka on 28/09/2013 - 21:50
sigma 400mm 5.6 apo mc lens
I wonder if there's a rear filter drawer and a yellow filter has been left in?
Posted by johnriley on 28/09/2013 - 23:32
sigma 400mm 5.6 apo mc lens
I don't think the lens has a rear filter type fitting
Posted by bforbes on 29/09/2013 - 00:53
sigma 400mm 5.6 apo mc lens
There a clear filter on the front I tried a few shots with it of aswell but its still looks yellow very strange lens am going to take it to the shop 2mora just hope its a easy fit thanks for your replays
Posted by lamb on 29/09/2013 - 07:18
ND shenanigans
I would recommend a Hitech set of 0.3, 0.6 and 0.9 ND Grads. Depending on your lenses, 85mm ones may be OK, but if you have some lenses that are prone to vignetting (dark halo around the edge with some filters) you may need 100mm ones. If you can get away with 85mm (I find these fine) you can buy ...
Posted by davidstorm on 09/10/2013 - 22:16
ND shenanigans
Hi Alistair The 85mm ones will be fine with the 18-55. I'm not sure about the Sigma 10-20 as I don't own one so haven't tested it. I do have a Pentax 12-24 and had to cut down the filter holder on that so it only had 2 slots instead of 3, because it stuck out too far forwards and caused some vi...
Posted by davidstorm on 10/10/2013 - 11:36
manual settings makes folks skin very red
If you would expose for the face and not have the sky blown out it would require a filter,would it not. the scene didn`t look like it was very bright so in PP you might be able to adjust it,the K5iis does have a good dynamic range the example that JAC posted would`nt have blown the sky The OP ...
Posted by montyaus on 21/10/2013 - 10:31
Under chin Ghost?
I think your monitor must be set too bright if you can see that easily. I have to brighten the image quite a bit to be able to see discoloration in the areas you describe. My bet is that it's a bit of lens or filter flare, caused by shooting directly into the light from the blinds. Andrew
Posted by andrewk on 12/11/2013 - 13:22
Ghosts II
Hi All Kingalew's recent post re ghosts reminded me of a problem I encounter every now and again... If I have the sun top left of frame, either just in or just out of the frame, I sometimes get circular ghosting in the bottom right, or more occasionally top right of the photograph. Below a...
Posted by thingsthatihaveseen on 12/11/2013 - 19:05
Ghosts II
Pentax used to make very expensive Ghostless filters with curved glass to stop this happening. Light is being reflected back from the lens onto the filter.
Posted by gartmore on 13/11/2013 - 07:27
Ghosts II
Thanks for this Ken... I currently use a slim framed screw mount Hoya Multi Coated UV filter directly in front of the lens... is this a case of trying to get a better multicoating (ie Hoya Pro 1)? Is that likely to make a difference? Or if light is actually going through the filter and bouncin...
Posted by thingsthatihaveseen on 13/11/2013 - 10:10
Ghosts II
Get rid of the filter and test again. Why compromise the carefully computed optical formula of a lens by adding an extra piece of glass in front of it. The only exceptions are where filters are needed, such as polarisers and grad filters. But always use a lens hood, which helps to protect the...
Posted by johnriley on 13/11/2013 - 10:53
Ghosts II
Hi John... thanks for the suggestion... as you say, will try without a UV filter and see what happens... unfortunately, as I mentioned in the original post, hoods are a non starter for me because of the nd filter set up I use... Also the conditions I usually shoot in tend to be pretty tricky due...
Posted by thingsthatihaveseen on 13/11/2013 - 13:16
