Hi, I'm thinking of getting this Fresnel below.
http://www.ebay.com/itm/New-Shen-Hao...1#ht_500wt_888
I take night photography a lot these days with my Shen Hao 4x5 and 75mm f/5.6 and It's really hard to see with the original gg.
Would it be helpful?
Thanks,
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