Cokin P filters on LF?

[olleorama]

Hello, I have to get some filters soon. Tired of burning in skies. I need filters both for my MF and LF lenses. All my lenses can in theory all mount the cokin P filter system (<82 mm filter thread). Will this system cause vignetting? Or even worse, will the lenses explode?

I can't see how it could cause vignetting, but you guys usually have good input.

thanks.

[djhopscotch]

I use the P system on a Nikkor-W 210mm for 4x5 as well as for my RB-67 system. My widest lens i use it on is the 65mm on the RB-67 and i do not have any problems with vignetting.

[olleorama]

I use the P system on a Nikkor-W 210mm for 4x5 as well as for my RB-67 system. My widest lens i use it on is the 65mm on the RB-67 and i do not have any problems with vignetting.

Thank you. I too have a 210 for the 4x5" and a RB67. Have you found any cheap polarizers that fit the P system? Cheap as in china made ebay version.

[djhopscotch]

Thank you. I too have a 210 for the 4x5" and a RB67. Have you found any cheap polarizers that fit the P system? Cheap as in china made ebay version.

I use a Cokin linear popularizer that i got used off KEH, i don't use any ttl metering so the circular polarizer was unnecessary. It was only like $14.

[Rick A]

I have both the A and P , and I dont think it will work without some vignetting. Even though it will fit up to 84mm threaded rings, the inner circle of the adapter itself is 76mm. while the filters are 84mm square. I think you are better off going with Lee or Chromatek systems. Some of their items interchange (size wise)with each other. I just recieved some literature from Chramatek a couple of weeks ago, and their equiptment looks to be first rate. You can check them out at Spaphoto in the UK. www.spaphoto.co.uk Anthony is a good guy to deal with, prompt and knowledgable chap.

Rick

[olleorama]

I use a Cokin linear popularizer that i got used off KEH, i don't use any ttl metering so the circular polarizer was unnecessary. It was only like $14.

Can you please explain? A circular polarizer is two polarizing glass sheets which can be turned in relation to one another, and a linear polarizer is what? I take it you can just 'polarize' light in 90 degrees increments? Or do you turn the whole filter adapter? If so, how does it work with gradual filters? I guess I need to read a bit on filters.. I have only used them for 35 mm, and I haven't frankly been so thorough.

Why is CPLs only necessary for ttl?

[djhopscotch]

There is a good explanation here:

http://www.luminous-landscape.com/tu...larizers.shtml

[olleorama]

I have both the A and P , and I dont think it will work without some vignetting. Even though it will fit up to 84mm threaded rings, the inner circle of the adapter itself is 76mm. while the filters are 84mm square. I think you are better off going with Lee or Chromatek systems. Some of their items interchange (size wise)with each other. I just recieved some literature from Chramatek a couple of weeks ago, and their equiptment looks to be first rate. You can check them out at Spaphoto in the UK. www.spaphoto.co.uk Anthony is a good guy to deal with, prompt and knowledgable chap.

Rick

Thanks, I've read about cromatek, but they are one order of magnitude more expensive than cokin P. I appreciate the input though.

Does cromatek have an official homepage?

[olleorama]

There is a good explanation here:

http://www.luminous-landscape.com/tu...larizers.shtml

thanks. got it.

[Rick A]

Thanks, I've read about cromatek, but they are one order of magnitude more expensive than cokin P. I appreciate the input though.

Does cromatek have an official homepage?

They are at www.spaphoto.com.uk I think they are well worth the extra pesos

Rick