Macro Experimenting ( Didn't go so well )

**goatsNdonkey** · 09-03-2017, 07:19 AM

Originally posted by old4570

Its the jupiter ...
I tried it in front of another 50mm , same result .
I need a much wider internal barrel ..

If you reverse the Jupiter on the front of a 75mm, or 85mm, or 105mm, I really think you won't have the problem, or it will get less as the host lens focal length rises.

I would expect you to have the problem you are having, again and again, the more 50s you try it reversed ahead of.

old4570 · 09-03-2017, 07:25 AM

Originally posted by goatsNdonkey

If you reverse the Jupiter on the front of a 75mm, or 85mm, or 105mm, I really think you won't have the problem, or it will get less as the host lens focal length rises.

I would expect you to have the problem you are having, again and again, the more 50s you try it reversed ahead of.

Some 50's are huge ,,, I can't afford a F1.2 , maybe a F1.4 ..
The jupiter might work in front of a 100 or 135 , it will be the next test ...
It's all about having some fun , it works and then maybe not ? I tried this a few years ago with a even smaller lens .. ( same result )

09-03-2017, 07:25 AM	#17
old4570 Veteran Member Join Date: Feb 2013 Location: Melbourne Photos: Albums Posts: 2,551 Original Poster	Hmmm Originally posted by goatsNdonkey If you reverse the Jupiter on the front of a 75mm, or 85mm, or 105mm, I really think you won't have the problem, or it will get less as the host lens focal length rises. I would expect you to have the problem you are having, again and again, the more 50s you try it reversed ahead of. Some 50's are huge ,,, I can't afford a F1.2 , maybe a F1.4 .. The jupiter might work in front of a 100 or 135 , it will be the next test ... It's all about having some fun , it works and then maybe not ? I tried this a few years ago with a even smaller lens .. ( same result )

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
I didn't know f/16 was the farthest I can go on my K-3II	Amoon	Photographic Technique	38	09-16-2016 11:11 AM
Pentax does quite well in noise performance (if we didn't know that already!)	JinDesu	Pentax DSLR Discussion	7	07-12-2016 04:18 PM
Well ... well ... well ... it looks as if the K-1 price war has begun ...	Newfie	Pentax K-1 & K-1 II	43	06-15-2016 04:09 PM
so I didn't expect to, but ended up with a k30..... Aussie evilbay	pixelvandal	Pentax K-30 & K-50	7	04-18-2016 11:41 PM
Well, Well, Well....	Caboverde1	Welcomes and Introductions	3	11-22-2009 08:21 AM

09-03-2017, 07:19 AM	#16
goatsNdonkey Site Supporter Join Date: Jan 2016 Location: Fulton County, Illinois Posts: 3,727	Originally posted by old4570 Its the jupiter ... I tried it in front of another 50mm , same result . I need a much wider internal barrel .. If you reverse the Jupiter on the front of a 75mm, or 85mm, or 105mm, I really think you won't have the problem, or it will get less as the host lens focal length rises. I would expect you to have the problem you are having, again and again, the more 50s you try it reversed ahead of.