Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Have questions about the equipment used for macro- or micro- photography? Post those questions in this forum.

Moderators: rjlittlefield, ChrisR, Chris S., Pau

chris_ma
Posts: 335
Joined: Fri Mar 22, 2019 2:23 pm
Location: Germany

Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by chris_ma »

While looking for some other stuff, I stumbled across a new float lens from Linos for lower magnifications.

with optimisation from 0.06x to 0.52x probably not terribly exciting for people into macro and micro photography, since I haven't heard of it before and I thought I post the details I could find:

linos page:
https://www.qioptiq-shop.com/en/Precisi ... float.html

leaflet with some MTF data:
https://www.qioptiq-shop.com/out/Graphi ... 7829_0.pdf

mechanical drawings:
https://www.qioptiq-shop.com/out/Graphi ... 8103_0.pdf

leaflet from asia with different curves (apparently it's called Blue mag floating over there):
https://www.envision.co.kr/ko/product/f ... 150312.pdf

price about 4500USD at digikeys (thanks to robert for the tip)
https://www.digikey.com/en/products/det ... 1/11505938
chris

RobertOToole
Posts: 1970
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
Contact:

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by RobertOToole »

This one was released right at the beginning of 2020. The range is actually quite good for in-the-field natural history macro work like insects and flowers etc.

Quick specs:

Focal length: 120mm
Aperture: 5.6 – 16
Extreme magnification range of -0.06x – -0.52x
Floating element optics
Perfect match with 5µm pixel size
Working distance: 302mm – 2037mm
Spectral range: 400nm – 750nm


I plan to cover more on this lens when I finish the 105 float lens.

Rodenstock released a 138mm f6.5 HR Digaron SW FLOAT in 2019. This one lists for something like $14K but is supposed to have superb IQ.

Best,

Robert

RobertOToole
Posts: 1970
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
Contact:

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by RobertOToole »

FWIW: 105 vs 120 MTFs!

_PM-105-120-float.jpg

chris_ma
Posts: 335
Joined: Fri Mar 22, 2019 2:23 pm
Location: Germany

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by chris_ma »

RobertOToole wrote:
Sun Apr 04, 2021 10:08 am
I plan to cover more on this lens when I finish the 105 float lens.
looking forward to that, looks like a very nice performer from looking at the data sheets.
quite a long working distance with it's long focal length on low magnifications though.
Rodenstock released a 138mm f6.5 HR Digaron SW FLOAT in 2019. This one lists for something like $14K but is supposed to have superb IQ.
interesting, just had a quick look at the data sheet looks quite spectacular from infinity to 0.2x:
https://www.linhofstudio.com/catalogue/ ... _a4152.pdf
nearly no CA and huge image circle (not quite enough for 4x5" film though).

price about 8200GBP + VAT, so 14K USD sounds about right.
https://www.linhofstudio.com/products/R ... 38mm_FLOAT
chris

RobertOToole
Posts: 1970
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
Contact:

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by RobertOToole »

chris_ma wrote:
Sun Apr 04, 2021 10:29 am

....interesting, just had a quick look at the data sheet looks quite spectacular from infinity to 0.2x:...
Some vendor took an 138HR outside the shop on a phase one and shot a brick wall, no really a brick wall, and compared that with some other reference lenses and got some really stellar results. Shooting a brick wall with a $14K lens? #-o {-o< :-k

RobertOToole
Posts: 1970
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
Contact:

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by RobertOToole »

:D Found it, that Google thing works pretty good ! :D

These guys say the 138HR float is the new standard for Phase one backs for them at least.

https://www.captureintegration.com/firs ... ure-mount/

The wall!

_PM-brick-wall.jpg

chris_ma
Posts: 335
Joined: Fri Mar 22, 2019 2:23 pm
Location: Germany

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by chris_ma »

RobertOToole wrote:
Sun Apr 04, 2021 10:44 am
The wall!
wow beautiful picture :)

apart from the boredom factor, I found that brick walls are actually a poor choice for judging resolution, since everything has about the same scale. what works much better are old churches with lots of different ornaments in different scales.
chris

RobertOToole
Posts: 1970
Joined: Thu Jan 17, 2013 9:34 pm
Location: United States
Contact:

Re: Linos inspec.x: L 5.6/120 float 0.06x ... 0.52x (Blue mag floating)

Post by RobertOToole »

Chris,

If you can possibly remind me in about a month when my work load eases up I will ask Qioptiq for a 120 Float loaner.

The 120 float would be better as a walking around lens with the wife type lens over the 105. But you do have a point with WD. It might be a little long. Most IF lenses FL drops normally so a Nikon 200mm is really something like 90mm at 1x.

About 5 years ago maybe I posted an image from one of my slide shows, comparing 50-105-125-150-200mm macro lens backgrounds, the difference was almost unbelievable. The 200 had best bokeh but the perspective of the subject was a little flat compressed compared to the others.

Best,

Robert

Post Reply Previous topicNext topic