using an objective lens

calypsob · 17th of April 2012 (Tue)

I was looking on surplus shed and noticed some microscope objective lens for sale. they are threaded for 1.25" and I suppose they are universal, not to sure on this one. They are so cheap I would buy one but I need to know if there is an EOS adapter to add an objective lens without the microscope itself? Is it even possible to do this? I plan to use a heavy velbon video tripod and a macro focus rail to operate, but after some research I was unable to find an adapter so I thought id ask on here. thanks.

LordV · 18th of April 2012 (Wed)

Think you can get M42 fit cone adapters so you would just need an EOS/M42 adapter too.
This type of thing http://www.ebay.co.uk/itm/RMS-Thread...-/350352400700

I did a DIY version with some old ext tubes and fitted the objective lens to a body cap I put on the end of the ext tubes
Brian v.

calypsob · 18th of April 2012 (Wed)

Thanks man, glad you came through on this one. How did your pictures turn out with this experiment?

LordV · 19th of April 2012 (Thu)

Quote:

Originally Posted by calypsob

Thanks man, glad you came through on this one. How did your pictures turn out with this experiment?

Here's some shots using a 10X objective- all have been focus stacked to give greater DOF.
Brian v.

Rhododendron anther at 10X by Lord V, on Flickr

Bluebell stigma 10x by Lord V, on Flickr

Damp springtail - Entomobrya intermedia #2 by Lord V, on Flickr

gmillerf · 19th of April 2012 (Thu)

Here is a similar adapter I have used:
http://www.edmundoptics.com/products...Num=1#products

You'll also need a t-thread adapter for your camera too.

The quality of the objective really matters. I used my 4x and was pretty happy with it, but photos with my 10x were pretty poor. I later changed to using a reverse ring which gave me much better results IMHO and is a much cheaper solution even if you already have the objectives.

calypsob · 19th of April 2012 (Thu)

yep after learning that key word "RMS" adapter I found an entire world of super macro photography. Apparently with objective lens the Nikon M-plan series are the way to go because they were designed to attach to a camera and not have chromatic aberration. From what i understand so far. I am going to try some cheap ones off of surplus shed for now until I can fit 150-200 bucks back into my budget.

17th of April 2012 (Tue)	#1
calypsob Member Join Date: Jan 2012 Location: auburn alabama Posts: 615	using an objective lens I was looking on surplus shed and noticed some microscope objective lens for sale. they are threaded for 1.25" and I suppose they are universal, not to sure on this one. They are so cheap I would buy one but I need to know if there is an EOS adapter to add an objective lens without the microscope itself? Is it even possible to do this? I plan to use a heavy velbon video tripod and a macro focus rail to operate, but after some research I was unable to find an adapter so I thought id ask on here. thanks.

18th of April 2012 (Wed)	#3
calypsob Member Join Date: Jan 2012 Location: auburn alabama Posts: 615	Re: using an objective lens Thanks man, glad you came through on this one. How did your pictures turn out with this experiment?

19th of April 2012 (Thu)	#5
gmillerf Member Join Date: Jan 2012 Posts: 116	Re: using an objective lens Here is a similar adapter I have used: http://www.edmundoptics.com/products...Num=1#products You'll also need a t-thread adapter for your camera too. The quality of the objective really matters. I used my 4x and was pretty happy with it, but photos with my 10x were pretty poor. I later changed to using a reverse ring which gave me much better results IMHO and is a much cheaper solution even if you already have the objectives.

19th of April 2012 (Thu)	#6
calypsob Member Join Date: Jan 2012 Location: auburn alabama Posts: 615	Re: using an objective lens yep after learning that key word "RMS" adapter I found an entire world of super macro photography. Apparently with objective lens the Nikon M-plan series are the way to go because they were designed to attach to a camera and not have chromatic aberration. From what i understand so far. I am going to try some cheap ones off of surplus shed for now until I can fit 150-200 bucks back into my budget.

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18th of April 2012 (Wed)	#2
LordV Macro Photo-Lord of the Year 2006 Join Date: Oct 2005 Location: Worthing UK Posts: 46,012 IMAGE EDITING OK	Re: using an objective lens Think you can get M42 fit cone adapters so you would just need an EOS/M42 adapter too. This type of thing http://www.ebay.co.uk/itm/RMS-Thread...-/350352400700 I did a DIY version with some old ext tubes and fitted the objective lens to a body cap I put on the end of the ext tubes Brian v. __________________ http://www.flickr.com/photos/lordv/ http://www.lordv.smugmug.com/ Macro Hints and tips http://photography-on-the.net/forum/...d.php?t=807056 Canon 20D, Canon 40D, Canon 5D mk2, Sigma 105mm EX macro, Tamron 90mm macro, Canon MPE-65,18-55 kit lens X2, canon 200mm F2.8 L, Tamron 28-70mm xrdi, Other assorted bits

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