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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 19 Jun 2008 (Thursday) 23:53
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DIY Tilt & Shift lens with AF confirmation

 
JDubya
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Jun 19, 2008 23:53 |  #1

I always wanted to try some T&S photography and with my passion for DIY (or is it a tight budget?) I decided to make this:

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I went with an M42 mount for two reasons. One, I can use it on my old Praktica and two, I can put it on my M42 -> EOS adapter to take advantage of AF confirmation.

This was a really simple project, it just took a little time to figure out how I wanted to mount the bellows to the lens mount. To do this you need a lens from a larger format than what you plan to use it on. I went with a [medium format] Bronica 75mm f/2.8. This (external link) is basically what it looked like originally. The focus ring and lens mount was extra bulk and weight that I didn't need so I removed it. Doing so also made mounting the lens to the bellows much easier. For the bellows I used a shock boot. The M42 mount is actually just an extension tube. To attach the bellows to the extension tube:

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Step 1: cut an appropriate sized hole in the shock boot for the extension tube
Step 2: insert
Step 3: "pop" it inward
Step 4: zip-tie it
Step 5: screw on an M42 -> EOS adapter

Voilà, T&S with AF confirmation on a budget :D



  
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DreDaze
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Jun 20, 2008 00:35 |  #2

looks kinda cool...i know nothing about these lenses...but love the DIY approach...but let's see some shots that you got out of it...


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Katzer1
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Jun 20, 2008 01:37 |  #3

For the price it can't be beat.
How is the bronica lens optically?
Care to share a few samples?

Cheers,

Erez

p.s.
while we are on the subject..
https://photography-on-the.net …=349395&highlig​ht=diy-ish


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Jun 20, 2008 04:04 |  #4

Samples.... ;)


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Jun 20, 2008 05:45 |  #5

evandavies wrote in post #5757557 (external link)
Samples.... ;)

Yeah me too.


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Jun 20, 2008 05:50 |  #6

TeamSpeed wrote in post #5757741 (external link)
Yeah me too.

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DDA
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Jun 20, 2008 05:53 |  #7

Tell me Dubya: How do you guide the light once your lens is tilted?


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Jun 20, 2008 06:17 |  #8

DDA wrote in post #5757759 (external link)
Tell me Dubya: How do you guide the light once your lens is tilted?

That is why so many of us would love to see samples! ;)

I think that this is closer to something like a lens baby than a TS lens, but again samples would be interesting.


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Jun 20, 2008 06:19 |  #9

TeamSpeed wrote in post #5757823 (external link)
That is why so many of us would love to see samples! ;)

I think that this is closer to something like a lens baby than a TS lens, but again samples would be interesting.

Actually, I already know the answer. The interior of the tube is silver coated and therefore perfectly reflecting ;-)a

Waiting for my samples...


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Jun 20, 2008 11:17 |  #10

There is no need to 'guide the light'! The image circle of the Bronica lens shown will normally cover a frame size of 43mm x 55mm, so the puny APS-C frame is merely a crop from that image circle (no one asks how one 'guides the light' on a Canon TSE lens made for a FF (film) camera, right?!)


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JDubya
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Jun 20, 2008 11:51 as a reply to  @ Wilt's post |  #11

Wilt is correct. That's the reason you use a lens from a larger format. The image circle it projects is much larger than that of your sensor which gives you the needed room to tilt and shift.

I haven't had a chance to go shooting so all I have is a test shot from before I even had the bellows mounted (i.e., not worthy of posting lol).




  
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René ­ Damkot
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Jun 20, 2008 11:59 |  #12

Would be nice to try this with a MF lens... That way you could even retain infinity focus.


BTW: I agree with the "Samples!" crowd :p


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Jun 20, 2008 12:02 |  #13

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Jun 20, 2008 12:02 |  #14

So with that setup, you have to manually focus, hold the camera, then hold the lens just right? Im assuming it has to be tripod mounted? Please post some images when you get the chance. I have been looking to do this until I can buy a TSE. Thanks.


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Jun 20, 2008 12:10 as a reply to  @ 4g63photo's post |  #15

Looks like a homemade Lensbaby (external link)


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DIY Tilt & Shift lens with AF confirmation
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