non-cokin adaptor rings

[Frog]

I need 3 adaptor rings for my Cokin filter holder(P).
The Cokin ones are 15-16 bucks but others are significantly cheaper.
Just wonder if anyone has used any of the cheaper ones and whether they hold up ok.
I guess the threads would be my main concern.
They're all a piece of plastic so I don't want to be paying for just a name if the others are as good.
Thanx!

[WsW-WYATT-EARP]

best way is get the 77mm cokin ring - then get a set of step down rings and just use them - you can get a whole set of step down rings on ebay for about $12

http://cgi.ebay.com/Fotodiox-Step-do...713.m153.l1262

[Frog]

Thanks! Don't know why I didn't think of that. That's what I'll do.

[freygr]

I need 3 adaptor rings for my Cokin filter holder(P).
The Cokin ones are 15-16 bucks but others are significantly cheaper.
Just wonder if anyone has used any of the cheaper ones and whether they hold up ok.
I guess the threads would be my main concern.
They're all a piece of plastic so I don't want to be paying for just a name if the others are as good.
Thanx!

Check Ebay there are tons of knock offs. And a ring is a ring.

[danic]

Wouldn't you want step-up rings to prevent the vignette?

[Frog]

Thankyou, all. Found a deal for a 77 and will be investigating the stepup/down rings.