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

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

Post by Adalbert »

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/v ... highlight=
but I have just learnt that the SIGMA LIFE-SIZE ATTACHEMENT Ø52 could be a good one.
BR, ADi

Saul
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Location: Naperville, IL USA
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Post by Saul »

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.
Last edited by Saul on Tue Dec 19, 2017 10:17 am, edited 1 time in total.
Saul
μ-stuff

Adalbert
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Post by Adalbert »

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/ ... tube-lens/

BR, ADi

SebastianFg
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Location: Freiberg, Germany

Post by SebastianFg »

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

Saul
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Post by Saul »

Adalbert wrote:...BTW, what do you think about the original tube-lens from NIKON ?
https://www.edmundoptics.de/microscopy/ ... tube-lens/ ...
Sigma/Reichert/Raynox was better at the edges.

Keep checking this link:
https://www.keh.com/shop/misc-35mm-sigm ... ch-52.html

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

Useful links:
http://www.photomacrography.net/forum/v ... ttachement

http://www.photomacrography.net/forum/v ... t=mxa20696
Saul
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mawyatt
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Location: Clearwater, Florida

Post by mawyatt »

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

Saul
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Post by Saul »

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.
Saul
μ-stuff

Adalbert
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Post by Adalbert »

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

Saul
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Post by Saul »

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)

Image
Saul
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Adalbert
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Post by Adalbert »

Hi Saul,
Great collection!

Enclosed you will find my lenses:
Image

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

Saul
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Post by Saul »

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.
Saul
μ-stuff

Pau
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Post by Pau »

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
Pau

Adalbert
Posts: 2425
Joined: Mon Nov 30, 2015 1:09 pm

Post by Adalbert »

Hi Pau,

Yes, so I remove the CA from the Olys like follows:
http://www.photomacrography.net/forum/v ... highlight=

e.g. Olympus MSPlann 50x / 0.55
Image
https://farm5.staticflickr.com/4240/349 ... a187_o.jpg

BR, ADi

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