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Results from a Custom Projection Lens
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PostPosted: Sat Feb 12, 2022 4:42 pm    Post subject: Results from a Custom Projection Lens Reply with quote
I recently acquired a custom projection lens with the front of the barrel taken from a Russian KO-120 and the focus mechanism taken from an unidentified lens. It works at about f1.4, and 95mm. Here are some of the results. Note the significant spherical aberration, but I thank I am using this flaw to my advantage. Images taken in Northern India with a Sony A7r3.

-Charles






PostPosted: Sat Feb 12, 2022 5:07 pm    Post subject: Reply with quote
Fantasic images, congratulations!


PostPosted: Sat Feb 12, 2022 5:23 pm    Post subject: Reply with quote
Like 1 Like 1 Very creative work very well done! A long pursuit coming to fruition. Congratulations!

Congrats Congrats Congrats


PostPosted: Sat Feb 12, 2022 6:56 pm    Post subject: Reply with quote
Simply outstanding images.
Congratulations and thank you for sharing!

S


PostPosted: Sat Feb 12, 2022 7:37 pm    Post subject: Reply with quote
Like 1


PostPosted: Sat Feb 12, 2022 8:15 pm    Post subject: Reply with quote
Like 1 Like 1


PostPosted: Sat Feb 12, 2022 9:03 pm    Post subject: Reply with quote
Well done! Like 1


PostPosted: Sat Feb 12, 2022 10:38 pm    Post subject: Reply with quote
caspert79 wrote:
Fantasic images, congratulations!


Thanks, caspert!


PostPosted: Sat Feb 12, 2022 10:39 pm    Post subject: Reply with quote
visualopsins wrote:
Like 1 Like 1 Very creative work very well done! A long pursuit coming to fruition. Congratulations!

Congrats Congrats Congrats


Thanks a bunch. Yes, I think I finally hit my stride with this beat up lens!


PostPosted: Sat Feb 12, 2022 10:39 pm    Post subject: Reply with quote
stevemark wrote:
Simply outstanding images.
Congratulations and thank you for sharing!

S


I appreciate your lovely comments, Steve. Thank you!


PostPosted: Sat Feb 12, 2022 10:40 pm    Post subject: Reply with quote
KEO wrote:
Like 1


Thank you!


PostPosted: Sat Feb 12, 2022 10:40 pm    Post subject: Reply with quote
uddhava wrote:
Like 1 Like 1


Thanks a bunch!


PostPosted: Sat Feb 12, 2022 10:41 pm    Post subject: Reply with quote
jamaeolus wrote:
Well done! Like 1


Thank you. I appreciate it!


PostPosted: Sun Feb 13, 2022 12:20 pm    Post subject: Reply with quote
Superb portraits! Why F1.4 and 95mm?


PostPosted: Sun Feb 13, 2022 4:02 pm    Post subject: Reply with quote
Pancolart wrote:
Superb portraits! Why F1.4 and 95mm?


Thank you! From what I understand, the lens itself incorporates two different lenses, so it is a kind of hybrid. The person who constructed it suggested that comparing to a telephoto, the specs had changed from the original settings of both lenses.

-Charles


PostPosted: Sun Feb 13, 2022 5:01 pm    Post subject: Reply with quote
Thanks, must try this!


PostPosted: Sun Feb 13, 2022 11:33 pm    Post subject: Reply with quote
Pancolart wrote:
Thanks, must try this!


This is what the creator said about it:

Custom Modified Projection lens 95mm + GFX adapter for Fuji 50R,50S,100, 100s GF Fujifilm
(this is a very unique lens - only one in a world)

I create this lens from the two unknown parts (i found the focusing distance equal to around 95mm compare it with a 70-200mm lens)

Lens equal f1.4

video - youtu.be/3pZ3CN0C6V4


This is a very special lens (focus only in a middle frame)

in a good condition: Optics are Good with a light scratches on the glass (look at the pictures)

I shoot some samples on a Fuji 50R (camera not included in this auction)

this lens will cover a medium format sensor without vignetting (Fuji GFX) (look at the pictures)


I compare this lens with a Canon 85mm f1.2II and found that F stop (light transmission) will equal to f1.4


this is the very special lens (not to shoot everything)
the result will depend on the light and background (sharp and focus in a middle)

For the best result, you need to add some contrast and sharpness in Photoshop (look at the pictures before and after color correction in a Photoshop)

and use a long hood especially for this lens it very important because this lens not very contrast but it possible to bring the contrast to the normal level in a Photoshop (look at examples before and after)


PostPosted: Mon Feb 14, 2022 5:41 am    Post subject: Reply with quote
Like 1 Like 1 Like 1


PostPosted: Fri Feb 18, 2022 5:29 pm    Post subject: Reply with quote
poilu wrote:
Like 1 Like 1 Like 1


Thank you!


PostPosted: Fri Feb 18, 2022 8:57 pm    Post subject: Reply with quote
Cool/interesting images/rendering can come from the least likely of places/lenses, in this case, it's from a true Frankenstein of a lens, it has a sufficiently sharp centre and has a wonderful decay into softness...
I do agree with the seller that it's not meant for every shot, but if the subjects are well chosen, will result in something truly unique, congrats, I think more than a few shooters are envious of this lens not being in their collections, myself included.
You should add a picture of the lens to your first post.
Hope to see more from it.


PostPosted: Fri Feb 18, 2022 9:47 pm    Post subject: Reply with quote
Ah...so a frankenlens!

Better than mine:

http://forum.mflenses.com/soft-glow-of-a-frankenlens-t82675,highlight,%2Bsoft+%2Bglow.html


PostPosted: Sat Feb 19, 2022 11:41 am    Post subject: Reply with quote
Now that's what I call being creative.


PostPosted: Sat Feb 19, 2022 5:34 pm    Post subject: Reply with quote
Lightshow wrote:
Cool/interesting images/rendering can come from the least likely of places/lenses, in this case, it's from a true Frankenstein of a lens, it has a sufficiently sharp centre and has a wonderful decay into softness...
I do agree with the seller that it's not meant for every shot, but if the subjects are well chosen, will result in something truly unique, congrats, I think more than a few shooters are envious of this lens not being in their collections, myself included.
You should add a picture of the lens to your first post.
Hope to see more from it.


Thanks. I feel exactly the same way. When a lens adds to the art, rather than distracts from it... that is a definite keeper. I intend to post more examples of my work with this lens, and will take some images of the lens itself next time I do!

-Charles


PostPosted: Sat Feb 19, 2022 5:35 pm    Post subject: Reply with quote
jamaeolus wrote:
Ah...so a frankenlens!

Better than mine:

http://forum.mflenses.com/soft-glow-of-a-frankenlens-t82675,highlight,%2Bsoft+%2Bglow.html


Wow, interesting shots. So that's the informal term for such a lens. I like it!

-Charles


PostPosted: Sat Feb 19, 2022 5:36 pm    Post subject: Reply with quote
martinsmith99 wrote:
Now that's what I call being creative.


Thanks a bunch, Martin!
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