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Shorten extension behind DCR-150 but keep same mag?

 
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Beatsy



Joined: 05 Jul 2013
Posts: 1425
Location: Malvern, UK

PostPosted: Sat Aug 11, 2018 3:17 am    Post subject: Shorten extension behind DCR-150 but keep same mag? Reply with quote

Is it possible?

Using DCR-150 as tube lens for Mitties is working well for me now, but the total length from camera to objective is troublesome in the space I have. I wondered if it's possible to add a lens of some sort to reduce the distance from DCR-150 to sensor but preserve FoV, magnification and image quality. I'm not hopeful there will be, but it's always worth asking here. Thanks.
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mjkzz



Joined: 01 Jul 2015
Posts: 973
Location: California/Shenzhen

PostPosted: Sat Aug 11, 2018 3:38 am    Post subject: Reply with quote

The only way I can think of is to cut down spacing between objective and Raynox.
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ChrisR
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Joined: 14 Mar 2009
Posts: 7956
Location: Near London, UK

PostPosted: Sat Aug 11, 2018 5:56 am    Post subject: Reply with quote

DCR250 and a 1.6x TC? You probably won't keep any of those things you want to preserve though Wink.
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mawyatt



Joined: 22 Aug 2013
Posts: 1672
Location: Clearwater

PostPosted: Sat Aug 11, 2018 8:45 am    Post subject: Reply with quote

Chris,

Clever idea Very Happy

I know the Nikon 1.4 and 1.7 Teleconverters are pretty good optically, especially the new TC1.4. I've used both on the PN105 to "keep" it at the optimum ~1X range but give 1.4X & ~1.7X.

Worth a try?

Best,
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RobertOToole



Joined: 17 Jan 2013
Posts: 1051
Location: United States

PostPosted: Sat Aug 11, 2018 9:45 am    Post subject: Reply with quote

mawyatt wrote:
Chris,

Clever idea Very Happy

I know the Nikon 1.4 and 1.7 Teleconverters are pretty good optically, especially the new TC1.4. I've used both on the PN105 to "keep" it at the optimum ~1X range but give 1.4X & ~1.7X.

Worth a try?

Best,


Agree. The 1.4x is better.

From years of experience in the field using the AF-S Teleconverter 1.4x II and AF-S Teleconverter TC-17E II from Nikon, the 1.7x is no as good as the 1.4x.

Robert
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