OLd Cokin filters

Posted 15/07/2010 - 10:52 Link
Hi there - I have a selection of elderly (20+ years) Cokin filters we used to use on our old Pentax KM and ME 35mm cameras. Can these be used with the K-X DSLR? The guy in the shop said there were new ones for the digital cameras. Can we use the old ones successfully? Not had time to play yet..... It's a shame that our old lenses don't seem compatible as none are Pentax- one is Vivitar, one Ricoh and the 50mm we are not sure!

many thanks for any comments!

Lazydaisy25
Lazydaisy25

Pentax Kx, DAL 18-55mmm, DAL 55-300, soon... DFA 100 Macro, Fuji S8100
thoughton
Posted 15/07/2010 - 11:01 Link
No reason you can't use the filters, althuogh with digital the coloured ones don't really do anything. Neutral density, graduated ND, and polarisers are still useful though.

Your lenses will work (provided they worked on your KM and ME). if they are fully manual you'll have to change the setting for 'allow aperture ring' in the camera's custom menu. Be careful with the Ricoh lens, some Ricohs had an extra spring-loaded pin which can jam on your K-x.

Welcome aboard, by the way
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
FlickrFluidrPPGStreetPortfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Edited by thoughton: 15/07/2010 - 11:02
hefty1
Posted 15/07/2010 - 11:02 Link
You can still use old Cokin filters, it's just that most of them probably won't be worth the bother.

The ones that are still useful for digital work are ND, ND graduated and polarisers.

The ones that are not so useful are those used to add or correct colour (can all be done in-camera now using white balance settings) or special effects like starbursts etc (much easier to apply post-capture in Photoshop or the like).

Camera shops like to sell you new toys and while it's true that modern filters may have special "designed for digital" coatings etc it doesn't mean that all your old ones will suddenly stop working...

As for the lenses, if you were using them with the KM and ME then there's no reason they won't work on the K-x. The only one you need to be careful with is the Ricoh as some of them had an extra pin that can get stuck on modern cameras, if you can post a picture of the back of the lens someone can let you know if it's safe to mount or not.
Joining the Q
hefty1
Posted 15/07/2010 - 11:04 Link
Tim beat me to it - glad to see we're singing from the same hymn sheet though.
Joining the Q
pink
Posted 15/07/2010 - 11:07 Link
and i was going to say the same

James
My Fluidr

"To see in colour is a delight for the eye, But to see in black and white is a delight for the soul" ANDRI HERY
thoughton
Posted 15/07/2010 - 11:14 Link
That was weird, almost word for word!
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
FlickrFluidrPPGStreetPortfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
bforbes
Posted 15/07/2010 - 11:20 Link
you should be careful with the Vivitar lens, as well, if it is a PK-A/R mount,. These were made to fit both Pentax and Ricoh with in camera aperture setting, i.e. Ricoh's equivalent to the Pentax "A" setting.
Posted 15/07/2010 - 20:59 Link
No reason why the filters won't work. However apart from the ND, soft focus, star burst and polorizers, make sure that the WB is set correctly for the coloured grads otherwise the auto WB will try to change the balance.
Best thing though, is have a play with the filters, digital images cost nothing, you may find some fun and interesting effects.

Just to give you an example, how about this (now I know it is a fuji, but hey I like its old character...)
link
Some Cameras
Edited by Offertonhatter: 15/07/2010 - 21:06

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