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Re: [OM] The "Summer Barn"

Subject: Re: [OM] The "Summer Barn"
From: Mike Gordon via olympus <olympus@xxxxxxxxxxxxxxxxx>
Date: Mon, 4 Jan 2021 02:30:12 +0000 (UTC)
Cc: usher99@xxxxxxx
<<When I read a review of a lens that points out what nice sunstars it makes, I 
wonder where I can find the one that doesn't make them at all. 😂

Understood.  Yes, it is an artefact, but a fun and sometimes attractive one.  
My CV 40/1.2 produces huge well defined large sunstars at the drop of a 
hat---too much of one spice can spoil the soup.  It is not the right lens for 
many situations as a result. Sometimes I like the effect especially in 
nightscapes or low angle sun peeping out from an obstruction.  The OMZ 50-250 
has straight aperture blades and has decent sunstars. Remember this shot?


I think I may be  a 4-5/10 on the sunstar fan scale whereas Moose may be a 1.  
Curiously the CV 50/f2 apo  has a virtually round aperture shape at F2 AND F2.8 
but polygonal with defined sunstars after that. It keeps the bokeh better at 
wide apertures.  A nice review of sunstar effects:


Stars in his eyes, Mike

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