self made optical viewfinder for Q

pentajazzz · 08-26-2014, 12:08 PM - **8 Likes**

prerequisites for the construction of the viewfinder:
- 01 prime lens has a fast and sure AF
- Q has no built-in optical viewfinder
- at sunny day screen are difficult to see.
- I have some lenses from disassembled pocket film cameras.
- I can to do it

so, was selected a pair of lenses from the viewfinder of film compact camera suitable for the angle of view of the 01 prime lens.
rear lens has a bright frame (field of view) and central mark, also front lens has a reflection coating to reflect the frame image back in to my eye.
so far, so good.

housing machined from aluminium alloy and painted matte-black spray paint.

hot-shoe "male" part was machined from black plastic "delrin" and screwed to the housing with 2 screws, received from donor camera too.
lens glues with epoxy to the slots inside of housing with alignment to "zero parallax" to the 5 meters (my average shooting distance for this lens)
for the shorter or longer distance parallax is insignificant and not worth the attention.
housing cover machined form aluminium alloy too and painted matte black. fixed to the housing with 2 screws...

I was trying it last weekend and I found it useful.

P.S. - also I have an zoom viewfinder from digital compact camera, may be next thing will be OWF with zOOm for my 02 5-15 lens?

Attached Images

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Last edited by pentajazzz; 12-10-2014 at 12:22 PM.

oscaletrains · 08-26-2014, 12:46 PM

Amazing!

JayBee451 · 08-26-2014, 12:53 PM

Great job, thanks for sharing.

**pearsaab** · 08-26-2014, 01:06 PM

very cool!!!

JinDesu · 08-26-2014, 01:16 PM

Very nice, I want one!

pentajazzz · 08-26-2014, 01:18 PM

Originally posted by JinDesu

Very nice, I want one!

do You have a lens-donor?

JinDesu · 08-26-2014, 01:22 PM

Originally posted by pentajazzz

do You have a lens-donor?

Unfortunately not at this time, but I'm glad you made this thread. The pocket film cameras are the disposable ones? Or old cheap rangefinders?

pentajazzz · 08-26-2014, 01:32 PM

not a disposable, it has a very low lens quality.

from range-finders more better, but they are haven't a frame marks, it range finder frame marks are projected from separate mask. too big. but - it is possible.
from old film point-and-shoot cameras with fixed 35mm lens and BIG view-finder are best.

JinDesu · 08-26-2014, 01:37 PM

Thanks, I'll keep an eye out for those

JimmyDranox · 08-26-2014, 02:06 PM

Very useful construction. Congrats.

i83N · 08-26-2014, 02:41 PM

kickstarter it?

pentajazzz · 08-26-2014, 11:33 PM

are You serious?

**barondla** · 08-27-2014, 04:54 AM

Wow, super project. Looks great. What is your next project?
thanks for sharing
barondla
Q is fun.

pentajazzz · 08-27-2014, 05:58 AM

Originally posted by barondla

What is your next project?

something for macro...

murrayatuptown · 12-08-2015, 06:05 PM

Does one just turn off the display with this? (my camera hasn't been delivered yet. If I had the camera in my hand it would be a dumb question).

Thank you

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08-26-2014, 12:46 PM	#2
oscaletrains Senior Member Join Date: Jul 2014 Photos: Gallery Posts: 172	Amazing!

08-26-2014, 12:53 PM	#3
JayBee451 Veteran Member Join Date: Apr 2013 Location: Queensland, Australia Posts: 379	Great job, thanks for sharing.

08-26-2014, 01:06 PM	#4
pearsaab Otis Memorial Pentaxian Loyal Site Supporter Join Date: May 2011 Location: Richmond, Virginia USA Photos: Gallery \| Albums Posts: 2,900	very cool!!!

08-26-2014, 01:16 PM	#5
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	Very nice, I want one!

08-26-2014, 01:18 PM	#6
pentajazzz Forum Member Join Date: Sep 2013 Posts: 62 Original Poster	Originally posted by JinDesu Very nice, I want one! do You have a lens-donor?

08-26-2014, 01:22 PM	#7
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	Originally posted by pentajazzz do You have a lens-donor? Unfortunately not at this time, but I'm glad you made this thread. The pocket film cameras are the disposable ones? Or old cheap rangefinders?

08-26-2014, 01:32 PM	#8
pentajazzz Forum Member Join Date: Sep 2013 Posts: 62 Original Poster	not a disposable, it has a very low lens quality. from range-finders more better, but they are haven't a frame marks, it range finder frame marks are projected from separate mask. too big. but - it is possible. from old film point-and-shoot cameras with fixed 35mm lens and BIG view-finder are best.

08-26-2014, 01:37 PM	#9
JinDesu Veteran Member Join Date: Jun 2011 Location: New York City Photos: Gallery Posts: 5,638	Thanks, I'll keep an eye out for those

08-26-2014, 02:06 PM	#10
JimmyDranox Veteran Member Join Date: Oct 2012 Location: Ploiesti, Romania Photos: Gallery \| Albums Posts: 1,632	Very useful construction. Congrats.

08-26-2014, 02:41 PM	#11
i83N Veteran Member Join Date: Mar 2009 Location: Lithuania Photos: Gallery Posts: 1,203	kickstarter it?

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08-26-2014, 11:33 PM	#12
pentajazzz Forum Member Join Date: Sep 2013 Posts: 62 Original Poster	are You serious?

08-27-2014, 04:54 AM	#13
barondla Site Supporter Join Date: Sep 2006 Location: midwest, United States Photos: Gallery \| Albums Posts: 5,713	Wow, super project. Looks great. What is your next project? thanks for sharing barondla Q is fun.

08-27-2014, 05:58 AM	#14
pentajazzz Forum Member Join Date: Sep 2013 Posts: 62 Original Poster	Originally posted by barondla What is your next project? something for macro...

12-08-2015, 06:05 PM	#15
murrayatuptown New Member Join Date: Jun 2015 Location: Michigan Posts: 24	Does one just turn off the display with this? (my camera hasn't been delivered yet. If I had the camera in my hand it would be a dumb question). Thank you