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SIGMA LIFE-SIZE ATTACHEMENT Ø52 as a tube-lens ?

 
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Adalbert



Joined: 30 Nov 2015
Posts: 294

PostPosted: Mon Dec 18, 2017 12:01 pm    Post subject: SIGMA LIFE-SIZE ATTACHEMENT Ø52 as a tube-lens ? Reply with quote

Hello everyone,
I have been looking for the best tube-lens form my Lu Plans. I have already asked for that:
http://www.photomacrography.net/forum/viewtopic.php?t=32929&highlight=
but I have just learnt that the SIGMA LIFE-SIZE ATTACHEMENT Ø52 could be a good one.
BR, ADi
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Saul



Joined: 31 Jan 2011
Posts: 950
Location: Naperville, IL USA

PostPosted: Mon Dec 18, 2017 3:44 pm    Post subject: Reply with quote

My tube lens history:
Nikkor 70-300mm VR
Morfanon
Nikon MXA 20696
Raynox DCR-150
Reichert tube lens (from microscope head)
Sigma Life Size attachment

Sigma is my favorite - best quality and most comfortable to use.
Morfanon & Nikon MXA 20969 are sold.
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Saul
Studio, horizontal and field setups


Last edited by Saul on Tue Dec 19, 2017 10:17 am; edited 1 time in total
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Adalbert



Joined: 30 Nov 2015
Posts: 294

PostPosted: Tue Dec 19, 2017 3:31 am    Post subject: Reply with quote

Hi Saul,

I still haven't found, what I'm looking for :-)

My tube-lens history is very short:
I have used only two lenses up to now:
- CANON EF 70-200L ( for the full magnification of the microscope lens)
- CANON EF 100L macro (for the half magnification of the microscope lens)

BTW, what do you think about the original tube-lens from NIKON ?
https://www.edmundoptics.de/microscopy/infinity-corrected-objectives/nikon-200mm-tube-lens/

BR, ADi
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SebastianFg



Joined: 09 Oct 2017
Posts: 8
Location: Freiberg, Germany

PostPosted: Tue Dec 19, 2017 3:36 am    Post subject: Reply with quote

Hello,
If I rememeber it correctly, the Nikon MX.... is this the Nikon tube lens.
So the Raynox and the Sigma should outperform the Nikon.
Best regards,
Sebastian
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Saul



Joined: 31 Jan 2011
Posts: 950
Location: Naperville, IL USA

PostPosted: Tue Dec 19, 2017 10:06 am    Post subject: Reply with quote

Adalbert wrote:
...BTW, what do you think about the original tube-lens from NIKON ?
https://www.edmundoptics.de/microscopy/infinity-corrected-objectives/nikon-200mm-tube-lens/ ...


Sigma/Reichert/Raynox was better at the edges.

Keep checking this link:
https://www.keh.com/shop/misc-35mm-sigma-life-size-attach-52.html

Sometimes they have Sigma, and price is better than on eBay.

Useful links:
http://www.photomacrography.net/forum/viewtopic.php?t=23947&highlight=sigma+lifesize+attachment+attachement

http://www.photomacrography.net/forum/viewtopic.php?t=32500&highlight=mxa20696
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Saul
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mawyatt



Joined: 22 Aug 2013
Posts: 1130
Location: Clearwater

PostPosted: Tue Dec 19, 2017 11:50 am    Post subject: Reply with quote

Saul,

I got one long ago for about $20 on eBay. I suspect the price has gone up now lots of folks are using it for a tube lens. I found it slightly better than the Raynox 150, mostly lower CA, but didn't do an exhaustive test using the Mitty's.

Honestly, don't remember if it was better than the Nikon 200mm F4 "Q" lens though, did you happen to test it against the Nikon 200mm?

Best,

Mike
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Saul



Joined: 31 Jan 2011
Posts: 950
Location: Naperville, IL USA

PostPosted: Tue Dec 19, 2017 12:00 pm    Post subject: Reply with quote

mawyatt wrote:
...did you happen to test it against the Nikon 200mm? ...


Hi Mike !
No, I do not own Nikon 200mm .
I made some comparison tests with Nikkor 70-300mm VR long time ago . I liked results very much - they were close to the tube lens (most probably I used morfanon & MXA-20696 at the time). If I'm focus stacking starter with limited budget - I would go for this lens, it is very comfortable to adjust magnification and results are pretty good.
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Saul
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Adalbert



Joined: 30 Nov 2015
Posts: 294

PostPosted: Tue Dec 19, 2017 12:25 pm    Post subject: Reply with quote

Hi Saul,
Many thanks for the links!
Would you tell me please which microscope-objectives do you use?
I use the photo-lenses (Canon EF as a tube-lens) for the LU Plan, BE Plan from Nikon and MSPlan from Olympus.
BR, ADi
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Saul



Joined: 31 Jan 2011
Posts: 950
Location: Naperville, IL USA

PostPosted: Tue Dec 19, 2017 12:39 pm    Post subject: Reply with quote

Adalbert wrote:
Hi Saul,
Many thanks for the links!
Would you tell me please which microscope-objectives do you use?
I use the photo-lenses (Canon EF as a tube-lens) for the LU Plan, BE Plan from Nikon and MSPlan from Olympus.
BR, ADi


Infinity - Mitu 5x, 10x, 20x, LDM 50x and Nikon 50x 0.55 (not pictured)


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Saul
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Adalbert



Joined: 30 Nov 2015
Posts: 294

PostPosted: Tue Dec 19, 2017 1:39 pm    Post subject: Reply with quote

Hi Saul,
Great collection!

Enclosed you will find my lenses:


The Olympus lenses have F=180, so I’m not sure if the Sigma Life Size would be OK for them.

BTW, I have some lenses from Zeiss and Lomo but I don’t use them.

BR, ADi
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Saul



Joined: 31 Jan 2011
Posts: 950
Location: Naperville, IL USA

PostPosted: Tue Dec 19, 2017 2:00 pm    Post subject: Reply with quote

Adalbert wrote:
...The Olympus lenses have F=180, so I’m not sure if the Sigma Life Size would be OK for them ...


I think magnification will be different only.
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Saul
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Pau
Site Admin


Joined: 20 Jan 2010
Posts: 4104
Location: Valencia, Spain

PostPosted: Tue Dec 19, 2017 3:35 pm    Post subject: Reply with quote

Quote:
Saul wrote:
Adalbert wrote:
...The Olympus lenses have F=180, so I’m not sure if the Sigma Life Size would be OK for them ...


I think magnification will be different only.


Yes, it will be a bit smaller, and so the image circle. But, if as I think, these ones are for the old metallurgical BH and not for the BX series UIS system they need compensating eyepiece and without it will show noticeable lateral chromatic aberration
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Adalbert



Joined: 30 Nov 2015
Posts: 294

PostPosted: Wed Dec 20, 2017 2:33 am    Post subject: Reply with quote

Hi Pau,

Yes, so I remove the CA from the Olys like follows:
http://www.photomacrography.net/forum/viewtopic.php?t=30493&highlight=

e.g. Olympus MSPlann 50x / 0.55

https://farm5.staticflickr.com/4240/34959820924_288719a187_o.jpg

BR, ADi
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