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There is one already. You can find it on the same web store

I said much since it perform the same as my orignal hypergon. There is no coating on oringal hypergon which makes it's harder to notice this central contrast loss .
Also thanks for these tests, it...

the ratio is even greater than 6 to 1 in this case. It's hard to control reciprocity law failure on this photo paper. I've also tested on kodak ra4 paper last month which could provide a.better...

On our shots, the raw brass did not affect this much. Maybe it was the problem of the chemical we used on our final product to make these brass parts even more shinier. I will do some further test...

Actually we've released some test shot on August.
http://xhslink.com/5AnBFx
http://xhslink.com/2YSBFx

Here's a form to create a single expose fan.

https://docs.google.com/spreadsheets/d/1lcIDbbMv2_dbQ1mdoI3uAqwR9hEjmtsH/edit?usp=sharing&ouid=109706560617397722482&rtpof=true&sd=true

A-C columns...

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Refering to simulation, the exposure time on the edge should be 4.9 times to the center. Considering long exposure time, this ratio should be larger. Also, with simulation data, I was...

I've update the link to main thread

The rest will be sent this week as I did not know there would be this much order and just send some lenses to him last weekend.~~

Hi, elevan is my friend and also my sales agent. As far as i known first 5 order has been dispatch last week, the rest will be sent this week as I did not know there would be this much order and just...

Actually I've put some photos on other SNSs, I will also add some image onto elevan's website and this thread later.

You sill need to adjust the camera parallol to those trees if you want to get rid of perspective distortion. But hypergon provide almost zero distortion, which means those trees will be straight. As...

Actually I've already provided the mount for copal-sinar DB shutter. You can find it on my printables. But Sinar DB is not thin enough so that it will block the corners if you shoot 8x10.

It's available now.

Sure you could see the front base. But I doubt the ground glass will appear in the view if you shot vertically.

Snapshot camera should be fine since there's no rail or limit on flange distance

P2 is OK if you have a wide angle bellow

My friend has checked Chamonix 8x10 ultra light. he said the bellow is fine but the rail will goes into the image since hypergon is too wide in this case. That's not a problem if you own a monorail...

I've update the link in the main thread. :)

Lenses are ready, I will put them onto my friend's website. Should be available this week or next.

I've just received all the parts, will be ready very soon.

Fine focusing kit, Back panel QR kit, and Focusing screen leveler. Already included in current version.

Highlights:

Robust 8×10 camera with full techincal movement at incredible price.
Patent modern composite fiber Bellows. Water proof; extension from 70mm to 750mm with no support needed.
Full...

I'm just providing an easier way to convert a graflex speed graphic to a big sinar mount shutter. Consider a sinar DB shutter with 1/1000 speed and bigger hole. This is a common way to use big barrel...

There are two type of graflex speed graphic shutter, early model with 24 different speeds and later model with 8 different
speeds.

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Graflex Speed Graphic is the best way if you want to use high speed portrait barrel lens. But it's quiet hard to find 5x7 or 8x10 speed graflex. Usually you should cut it into...

Update 2023-08-18

The filter mount is redesigned with ball bearing. And I found a manufactruer of silicon mask for these perfect aperature.

And the next phase is PVT. So we will see the final...

https://www.youtube.com/watch?v=kISwjkikxjU

I found some elements for a cooke portrait 200mm f/3 on my shelf last weekend. So...

Some CADs.
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Printed with PETG-CF
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The thickness of aperature could strongly affect the vignetting of hypergon. It really matter if you want to use it with full angle of view

hypergon75 is not small enough to fit in ilex#5. It's quite a challenge to mount it on any leaf shutter to work with 8x10.

These were just samples. I've not decided the final marks yet. Any suggestions?

Should be schneider. They've produced some Artar and Dagor with multicoating in modern shutter.

I've tried mounting on the thread of sinar shutter, but the blower tube will prevent the lens going deep enough.

use a electrical magnet instead of serveo just like most eshutter. Modern eshutter(like the one in XCD lens) can work at 1/4000s.

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Here's a photo showing how this work. I made a flange to mount the lens diretly onto shutter thread rather than lensboard. There's enough space on both sides.

I use a sinar DB shutter rather than a packard shutter so only one air bulb is needed. Sinar DB offers accurate and fast(considering its size) shutter speed, which is important if you want to use it...

Exactly, I use a 3D printed punching die to bend it.

I use a sinar DB shutter rather than a packard shutter so only one air bulb is needed.

Hey guys, I've decided to make that little fan as central filter. I will upload latest info in the main thread.

They were found in a large barrel with model name and brand (not Ernemann). I believe it was a industrial or aerial lens. All surfaces were coated so it should be a post war lens. All these data was...