8mm Forum: 2 x or 1.5 x scope lens ?

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Topic: 2 x or 1.5 x scope lens ?

Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted April 06, 2017 05:37 AM

I suppose this is 8mm or 16mm really but I`ve never used a scope lens very often.

What is the difference, bar the obvious using these two types.

Thanks Mark.

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted April 06, 2017 11:36 AM

Sorry Mark, in which sense do you mean?

A 1.5x will stretch your normal aspect ratio films to be able to fit a 16:9 screen very well.

I was looking for an Isco one as a compromise for my scope films as the films would then fit my screen perfectly.
I know this would still give them a slightly squeezed effect but I was quite happy with this to get better depth to the image on a 10ft diagonal screen.

I always felt that for domestic sized screens, the full scope 2x stretch just leaves the depth of the image just a tad too small for my liking.

I've yet to find one of the lenses and when they have surfaced they are extremely pricey from my own perspective as they tend to be very popular among modern day digital photographers I'm led to believe.

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"C'mon Baggy..Get with the beat"

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Mark Todd
Film God

Posts: 3846
From: UK
Registered: Aug 2003

posted April 06, 2017 05:31 PM

Hi Andrew well my house can`t cope with 266.1 at all as so small, so thought I might try a 1.5 x.

My elmo 20mm ( 16mm lens ) has a ring attactched at the front I think might be for a scope lens to screw straight on to it.

I watch all my scope bits 8 ( non at the moment ) or 16mm just through a 4/3 lens usually, stretched I know, but no waste of picture area.

Just might be nice to project some of them almost right if you will.

Any 1.5 x scope lenses with a 50mm thread possibly.

Best Mark. Thanks.

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Andrew Woodcock
Film God

Posts: 7477
From: Manchester Uk
Registered: Aug 2012

posted April 06, 2017 06:34 PM

Your house cannot possibly be much smaller than ours Mark.
Not unless you live in a tent! [Big Grin]

I think we may both benefit from a 1.5x scope lens as a compromise but I won't pay the huge sums some want for these.
If one shows up for reasonable money and the time is right (certainly not this day!), then I may be tempted. [Wink]

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"C'mon Baggy..Get with the beat"

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Kevin Clark
Jedi Master Film Handler

Posts: 978
From: Bapchild, Kent, UK
Registered: May 2004

posted April 07, 2017 03:59 AM

Hello Mark & Andrew

Mark - having played with all sorts of anamorphics on three gauges I recommend you avoid fitting a 'scope lens of any squeeze ratio to the Elmo 20mm as you will get terrible vignetting to the image edges.

The Elmo 38mm lens is really as big as you should go with 16mm coupled with a nice Kowa 8z / 16h or Elmoscope II lens you will have full width 'scope without vignetting.

All the 'scope ratio - x1.5, x2 etc. means is when projected the width of the picture will be x1.5 or x2 wider - so if you have a 38mm lens fitted and get a 4ft wide picture then after fitting a x2 lens your picture will be 8 foot wide.

Andrew has correctly stated the current facts though that all 'scope lenses (the decent quality ones) are high in price due to their popularity with DSLR camera users.

x1.5 lenses are even more expensive as they convert 4:3 to 16:9 and 16:9 to 'scope - also they are popular with digital projector owners who project a native full panel picture into them rather than letting the projector re-scale the image.

Sorry if this seems like I'm 'tinkling on the embers' but you will end up with a cost of a few hundred pounds to get a decent 38mm Elmo lens and Kowa / Elmoscope set up so it may be a cost too far for the result you are looking for.

I would guess the ring on the front of your Elmo 20mm lens is for mounting an Elmo zoom converter not a 'scope lens.

Kevin

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Maurice Leakey
Film God

Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007

posted April 07, 2017 05:16 AM

Projecting 'scope is just not just the purchase of an expensive anamorphic lens, it is the additional purchase of a suitable fixing bracket.

My Bell & Howell screws directly into the prime lens.
My Elf slides into the Elf hinging bracket.
My Elmo fits into the Elmo bracket which itself fits into the two holes on the projector.

With the prime lens of a 16mm projector which is 50mm (2") and a throw of 10ft you will get a picture 2ft wide. Through a 2x anamorphic this will extend to 4ft wide.

Unless there are many 'scope films in a collection it may not be economically worthwhile to get into 'scope. After all, you can still project them even if the picture is a trifle squeezed up.

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Maurice

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