How good could that be - 3S-Kangrinpoche Fresnel

[yadaaa]

I want to but a Fresnel glass, and saw this one on the bay:

http://cgi.ebay.com/3S-Kangrinpoche-Fresnel-Screen-4-5-LF-Cameras-/110522819448?pt=LH_DefaultDomain_0&hash=item19bbac6378


since I never used one before, I can't judge by the picture its quality. can someone shed some light on that?

[Sevo]

Will probably be the same as those on current Chinese LF cameras, if so, the price is average - Shen Hao fresnels sell for about the same. The Shen Hao fresnels are IMHO not in a class with expensive original Sinar or Linhof fresnels, but they are no worse than any of the other affordable after-market fresnels I've ever seen, and doubtlessly superior to cheap reading loupe fresnels.

[yadaaa]

ok, that doesn't sound so good....:)

compared to this:
http://www.calumetphoto.com/eng/product/cambo_4x5_fresnel_lens/cb0218

regarding price-performance ratio, is it better to get the calumet one?

[europanorama]

ok, that doesn't sound so good....:)

compared to this:
http://www.calumetphoto.com/eng/product/cambo_4x5_fresnel_lens/cb0218

regarding price-performance ratio, is it better to get the calumet one?
I had an exchange with 3S-KRPC slightly different name here: NEVER EVER TRY TO CUT THE FRESNEL. i have one. it will break he said.