Atik Cameras Forum
Support (Please note, this is primarily a user forum, for direct Atik support, please email support@atik-cameras.com) => 3- and 4-Series Cameras => Topic started by: joelshort on April 04, 2012, 07:30:01 pm
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I have the Atik OAG/EFW2/383L+ kit. Can anyone tell me EXACTLY what the backfocus of this complete kit is?
If memory serves the published backfocus is:
OAG=24mm
EFW2=22mm
383L=17mm
That adds up to 63mm. However, when I calculate the actual backfocus by using accurate image scale etc, I get a figure of 58mm. 5mm doesn't sound like much but it can greatly affect the correct use of flatteners/reducers, so I'm trying to figure out the exact backfocus of this kit.