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[OM] The enduring appeal of GAS

Subject: [OM] The enduring appeal of GAS
From: Mike Gordon via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Fri, 17 Jun 2022 21:13:31 +0000 (UTC)
Cc: usher99@xxxxxxx
GAS is Us Moose writes:

C-U is also important to me. This lens shares with the 12-100/4 closest focus 
at 12 mm, rather than the long end. I tried the Sigma Achromatic Macro Lens AML 
72-01, but the result was disappointing. Then the Pentax T-132 did a great job. 


Curiously the Pentax T132 as lovely as it is on the PL 100-400 is LOUSY on the 
12-100.  Moose just about put the Sigma CU diopter in my hand with a link.  The 
working distance isn't great, but I think it is decent on the 12-100/4?   The 
12-200 does not have sync IS but I think the advantage is much less on the OM-1 
as the IBIS is so good.  I think only half a stop or so depending on the lens 
which is much different than earlier models.  The 12-200 images seem to clean 
up well and seems dramatically better than that Tammy on the 5D.


This was a quick single shot while we were hiking from one Mirador to 
another--no heavy lifting on that one.


Perhaps I should have focus bracketed but I thought it is OK for what it is.   
In past times I used to always have a dedicated macro kit and if the subject is 
worth a macro shot, it is worth putting on extension tubes or a macro lens.  
That doesn't work so well when hiking.  I can catch up but can get waaaay 
behind for a while. 

New appreciation for achromatic CU diopters, Mike 
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