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alex ph
Joined: 16 Mar 2013 Posts: 1662
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Posted: Mon Jan 09, 2023 3:54 am Post subject: Astro-Kino IV 1.4/50 close ups |
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alex ph wrote:
Put on Sony Nex with help of a longer helicoid
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alex_d
Joined: 19 Jan 2019 Posts: 377
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Posted: Mon Jan 09, 2023 11:03 am Post subject: |
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alex_d wrote:
this is a small projector lens right ?
can you please share some img's of your coupling to the camera |
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blotafton
Joined: 08 Aug 2013 Posts: 1616 Location: Sweden
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Posted: Mon Jan 09, 2023 11:17 am Post subject: |
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blotafton wrote:
Nice shots! I saw one for sale some time ago, almost bid on it. |
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calvin83
Joined: 12 Apr 2009 Posts: 7555 Location: Hong Kong
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Posted: Mon Jan 09, 2023 1:37 pm Post subject: |
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calvin83 wrote:
_________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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alex ph
Joined: 16 Mar 2013 Posts: 1662
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Posted: Mon Jan 09, 2023 6:21 pm Post subject: |
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alex ph wrote:
Thank you guys! This one seems to be a fine lens.
Alex_d, that's correct, it is a small projector lens, you find many copies being sold in this moment, even though the prices are a bit on the high side.
My adaptation is simple and not that elegant. I put a thick propilene adhesive on the lens' side
and then put it into a 52mm-42mm helicoid. As the barrel thickness + adhesive is not enough to fix it tight inside, I put some spare pieces of cardboard to tighten the construction.
In this post a fellow photo enthousiast took the same helicoid but instead of a flimsy adhesive and cardboard he used a step down ring. That looks undiscutably nicer and strudier, although his construction has MFD of 2m max. Mine could be focused nearly at infinity if I press strong the lens against the helicoid. |
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alex_d
Joined: 19 Jan 2019 Posts: 377
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Posted: Mon Jan 09, 2023 6:43 pm Post subject: |
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alex_d wrote:
i see it .. it does not look more elegant than my setup, unfortunately,
it comes down to: .. "the cardboard is your friend".
but i do agree, it's a fine (= " creative..") close-up lens, i have 1.5 version (as I can remember), not 1.4
made some wacky pics of my tlr's few years back |
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alex ph
Joined: 16 Mar 2013 Posts: 1662
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Posted: Mon Jan 09, 2023 7:13 pm Post subject: |
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alex ph wrote:
That would be interesting to see your results. Please post a link if you find your set of shots.
Here is a couple of examples of near-infinity capacities with my setup
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alex_d
Joined: 19 Jan 2019 Posts: 377
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Posted: Mon Jan 09, 2023 7:35 pm Post subject: |
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alex_d wrote:
alex ph wrote: |
That would be interesting to see your results. Please post a link if you find your set of shots.
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nothing online, somewhere on a hhd
have to dig to find it |
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alex ph
Joined: 16 Mar 2013 Posts: 1662
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Posted: Sun Mar 12, 2023 4:43 pm Post subject: |
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alex ph wrote:
alex ph wrote: |
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I found a better solution to let these projector lenses fit a 52mm helicoid. The idea is the same, a band of adhesive black foam which makes the lenses sit tight in the helical pitch. Just a thicker one while the width is OK for a relatively narrow space which needs to be covered.
So, a cheap no-brainer solution is a 20mm x 5mm variety of this kind. |
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