d3100 focusing screen upgrade question.

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Blacktop

Senior Member
After much researching ,watching tutorial after tutorial, I have decided that I need a split-prism focusing screen.
Why?.. Because I like shooting old manual focus lenses, (In all honesty I only have one, but I love it.)

I,ve been looking at the katzeye ones, but they are a $105 USD, which is a bit steep for me. My 55mm f/1.8D cost me 90 bucks.

Does anyone have any experience using the cheaper 40 dollar ones like the ones on e-bay from Hong Kong?
My gut feeling is to spend the extra money and get the katzeye, but my wallet says otherwise.

Also what is the difference between the 45 , the 90 and the 180 degree split-prism focusing screens?
Thanks.
 
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Mike D90

Senior Member
blacktop said:
After much researching ,watching tutorial after tutorial, I have decided that I need a split-prism focusing screen.
Why?.. Because I like shooting old manual focus lenses, (In all honesty I only have one, but I love it.)

I,ve been looking at the katzeye ones, but they are a $105 USD, which is a bit steep for me. My 55mm f/1.8D cost me 90 bucks.

Does anyone have any experience using the cheaper 40 dollar ones like the ones on e-bay from Hong Kong?
My gut feeling is to spend the extra money and get the katzeye, but my wallet says otherwise.

Also what is the difference between the 45 , the 90 and the 180 degree split-prism focusing screens?
Thanks.
Click to expand...

I just gave away a 180* split prism that I got from China. It was good quality item but I did not like the black center of the prism when at wide apertures. I shoot mainly birds and I wanted to be able to clearly see the eye of the bird and the black dot got in the way. I ordered a factory style matte replacement (Made in China as well) to replace my factory screen that was scratched.

As to the other part about the different angles of split prisms I cannot answer.
 
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