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Macro rig
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Sun Mar 19, 2017 7:41 pm    Post subject: Reply with quote

rjlittlefield wrote:
I had forgotten this thread, and I see that one of your earlier questions went unanswered.


Thanks Rik ! Looks like bottom line is - balance between vignetting and aberrations.
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Saul
Studio, horizontal and field setups
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microman



Joined: 14 Jan 2017
Posts: 97

PostPosted: Mon Mar 20, 2017 7:25 am    Post subject: Reply with quote

Interesting setups, thanks for sharing.
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Fri Jul 28, 2017 12:50 pm    Post subject: Reply with quote

rjlittlefield wrote:
... If the distance is too short, the system may experience aberrations...


Thanks Rik, sorry for the late reply !
So, only way to check aberrations - make tests at the different distances between objective and tube lens ?
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Saul
Studio, horizontal and field setups
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Wed Dec 06, 2017 6:54 pm    Post subject: Reply with quote

Small improvement to my Labophot stacking base - I got it without the light, had to use Jansjo through the back opening. Few cheap ebay parts - 10W led 272389345999 , heatsink 182195476144 & LED dimmer 282671724717 - now I have a comfort adjusting background brightness


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Saul
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Smokedaddy



Joined: 07 Oct 2006
Posts: 797
Location: Phoenix, Arizona

PostPosted: Wed Dec 06, 2017 7:36 pm    Post subject: Reply with quote

Sweet setup Saul.
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Wed Dec 06, 2017 7:48 pm    Post subject: Reply with quote

Smokedaddy wrote:
Sweet setup Saul.


Thanks James, it keeps my blood pressure lower Wink
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Saul
Studio, horizontal and field setups
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ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 7255
Location: Near London, UK

PostPosted: Thu Dec 07, 2017 7:35 am    Post subject: Reply with quote

Are you happy with the spectrum of the LED?
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Chris R
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Saul



Joined: 31 Jan 2011
Posts: 911
Location: Naperville, IL USA

PostPosted: Thu Dec 07, 2017 7:56 am    Post subject: Reply with quote

ChrisR wrote:
Are you happy with the spectrum of the LED?

Did not try yet, fresh update . Should I look for the better CRI ? It is just for the background illumination ...
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Saul
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