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Old June 29th, 2005, 09:19 PM   #1
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mini35's prism

Anybody try to look inside of the mini35 to see if what prism they use? It looks to me from the picture (I never seen the real one) they use 1 roof prism and 1 penta prism to correct the image, this is just my opinion. Any idea?

Quyen
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Old June 30th, 2005, 03:59 PM   #2
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inside there are only some roof prisms and one mirror as far as I remember.

dietmar
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Old June 30th, 2005, 04:35 PM   #3
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I think there should be 2 mirrors, 1 you cannot see facing backward. This 2 mirror do the job of penta prism. If only 1 mirror, the picture will be upside down.
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Old July 1st, 2005, 03:06 AM   #4
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There has already been a lot of prism discussion... look here:

http://www.dvinfo.net/conf/showthread.php?t=33498

Hope it helps
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Old July 1st, 2005, 04:50 AM   #5
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Thank you for your link. I still think 1 roof prism and 2 mirrors or 1 roof prism and 1 penta prism will give the shortest path of light. They are more expensive than the 2 right angle prisms but will give a more compact design. Thank you.
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Old July 1st, 2005, 10:14 AM   #6
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did you ever get a prism design to work anders?
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Old July 1st, 2005, 10:27 AM   #7
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I tested with mirror and it works OK. I am ordering the prisms right now.
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Old July 1st, 2005, 10:37 AM   #8
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are you getting your prisms from surplusshed.com ???
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Old July 1st, 2005, 10:48 AM   #9
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No. To my calculation, using 2 right angle prisms to get 24mmx18mm, 1 should be at least 24mm thick x 26mmx37mm and 1 should be at least 18mm thick x 35mmx50mm. So to make the unit compact, I ordered the size close to those. Surplusshed doesn't have those size.
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Old July 1st, 2005, 05:30 PM   #10
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So where did you order from??

Court
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Old July 1st, 2005, 07:07 PM   #11
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AnchorOptics.com
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