Originally posted by maxibaut I need a filter to shoot interior window shots of bedrooms.
I had yesterday a photographer as guest in my B&B and he gave me tips about taking interieur pictures.
He had a Nikon D800 with a lens + "rotational filter" . He learned me the point about filters. Very interesting.
My question:
I have a K5 + sigma 10-20 4-5.6 lens.
Can I put a filter on that lens also?
what brand do I need.
I'm wiling to pay more to have it rotational instead of having to buy several filters.
I don't want special effects or so, just to isolate the "too much of" light that enters the room by the windows when I'm taking interieur shots.
I noticed you updated with the specific lens information in the first post.
Sigma 10-20 f4 - 5.6 version. This lens has a
77mm filter thread. Sigma 10-20mm F4-5.6 EX DC J Lens Reviews - Sigma Lenses - Pentax Lens Review Database (link to user reviews & specs)
It sounds like you need a Circular Polariser as others suggested.
The polariser can cut down reflections (and glare) from surfaces like water, glass, grass & foliage and improves saturation. Its used a lot in landscape to improve the contrast in skies.
It also works as a darkening filter as it reduces light by about 1
1/2 to 2stops.
Note: The "polarising effect" varies with the angle of the light rays coming into the lens so with a wide angle lens like the 10-20mm which cover well ....a wide angle...... of light rays there will be some variation of the colour effect of the sky.
Read this:
Polarizers
The 77mm is a pretty universal size. A lot of sigma lenses are 77mm. so is the Pentax DA*16-50, DA*200, DA*300.
77mm is pretty large aren't cheap but on the plus side, with some cheap adaptor rings you can use your big 77mm on smaller size lenses.
Here's a link to B&H photo for reference pricing.
Polarizing | B&H Photo Video
These are all the 77mm CPL. I would be choosing a multi coated one for best light transmission. "Kaesemann" type are supposedly sealed and better for more extreme environments.
The cheaper ones generally have inferior coatings or have no coating at all.
The "slim" variety are supposedly for wide angle lenses with thinner metal in the rings for less chances of shading in the corners but I've no idea if it's necessary on a 10-20mm with an APS-C sensor camera.
I have a 77mm B+W MRC and can recommend that one. It cost me 135 bucks a couple of years ago.