Different scopeless design

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Snapper
Posts: 425
Joined: 14 Feb 2014, 23:23
Location: East Sussex

Different scopeless design

Post by Snapper » 15 May 2014, 17:10

I've been thinking about a scopeless build pretty much as soon as I finished my add-on. I had ideas about ali tubing, tapping cutting drilling etc but a new, simpler idea has presented itself.

I bought a second hand cctv camera from ebay (total of £12.50) with a view to using the 12.5-75 mm f1.8 lens and binning the rest. It turned up today and I was initially a bit disappointed as it is bigger and heavier than I had hoped, but when I had a look inside the metal camera body I discovered it was almost entirely empty save for the board cam (a 1/4" Sharp thing, now binned), which gave me the idea that I could just replace the camera and fit a viewfinder and 12 v battery into the void - which should just fit snuggly.

Image

It will also mean that I don't need to faff with ways of securely attaching the camera or lens as it has already been done for me, and the total length should still be less than a rifle scope. My plan is to use matt black heat-shrink tubing on the lens so that the zoom ring is held in place (obviously i won't put it on the focus or aperture rings).

Image

I'm hoping the total cost shouldn't be too much more than £60 as I'm going to use the same cheap Effio e board cam that I used for my add-on as I'm mightly impressed with that one.

grantellissheffield
Posts: 64
Joined: 04 Apr 2014, 19:07
Location: sheffield uk

Re: Different scopeless design

Post by grantellissheffield » 15 May 2014, 17:41

should look good when finished in a coat of black.

genisis22
Posts: 346
Joined: 16 Jul 2012, 18:37
Location: South Bristol

Re: Different scopeless design

Post by genisis22 » 15 May 2014, 18:39

looks like a plan, and I am sure you have already thought about mounting, couple of mounts with top ring of, very low profile should do the trick nicely using original cap nuts down through to mount bottoms after some careful lining up, you could elongate the holes to give some lateral leigh way for final alignment to bore.

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Torchwood
Posts: 1601
Joined: 04 Oct 2012, 23:25
Location: Barnet, london

Re: Different scopeless design

Post by Torchwood » 16 May 2014, 16:45

You can have it look like this maybe.

Image
Image

Snapper
Posts: 425
Joined: 14 Feb 2014, 23:23
Location: East Sussex

Re: Different scopeless design

Post by Snapper » 16 May 2014, 17:16

I'm going to use a camcorder viewfinder again and a board lens so it won't be quite like that. What lens is yours and is it any good? Mine is marked Sony but underneath it says made by Tamron.

When I get the bits together (and when I get an OU exam out of the way) I will put up a full account.

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Torchwood
Posts: 1601
Joined: 04 Oct 2012, 23:25
Location: Barnet, london

Re: Different scopeless design

Post by Torchwood » 16 May 2014, 17:45

Its a mint canon lens. Optics really clear, just turn up today, havent tested it at night yet. But 1.8 apperture must be usefull.

Toni
Image

Snapper
Posts: 425
Joined: 14 Feb 2014, 23:23
Location: East Sussex

Re: Different scopeless design

Post by Snapper » 27 May 2014, 22:29

Here's a quick preview of my build so far. The viewfinder will have to be a couple of inches longer but it is almost there.
Image
I will do a full write up when its done.

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Torchwood
Posts: 1601
Joined: 04 Oct 2012, 23:25
Location: Barnet, london

Re: Different scopeless design

Post by Torchwood » 27 May 2014, 22:43

This is interesting, it's getting better all the time, it looks the part, anxious for the full review. :thumbup:
Image

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22-250jock
Posts: 2355
Joined: 07 Dec 2012, 17:53
Location: Burgess Hill, west sussex

Re: Different scopeless design

Post by 22-250jock » 28 May 2014, 06:49

looking good mate :thumbup:

cheers jock
“When guns are outlawed, only the Government will have guns. The Government - and a few outlaws. If that happens, you can count me among the outlaws.”
― Edward Abbey,

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gypo
Posts: 1776
Joined: 10 Apr 2014, 16:36
Location: wales

Re: Different scopeless design

Post by gypo » 28 May 2014, 08:30

Looks good mate, well done
G

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