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Opti Solar 250 opinions

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kedwardsleisure View Drop Down
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    Posted: 28 September 2020 at 11:09am
The opti K2 is pretty awesome, I've seen them used outside projecting on the side of a building. They do need to warm up though to get the oil flowing.
The Solar 250 is cheap to run as it uses a capsule lamp but by modern standards is dim, the oil wheels sap alot of the light away, ok for a dark pub or club but that's about it.

Years ago we supplied some solar250's to the wegdwood pottery to project decorating stencils onto large plates, to help the decorators to trace the patterns more accurately. They were using domestic slide projectors but the transformers kept burning out being on all day at acute angles.

The cost of ownership of an LCD projector must be factored in though, one blown lamp and you're only taking home half your fee.
K. Edwards Electronics Engineers

North Staffordshire

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Digbethdave Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2020 at 4:50pm
Originally posted by imageoven imageoven wrote:

Originally posted by norty303 norty303 wrote:

Originally posted by DigbethDave DigbethDave wrote:

I should imagine he will have told hold out a while for that, seems expensive for such an old, niche fixture no?


They are a tradable commodity still. Not much else does what they do, and they are in short supply. Most quantities held by a few people who specialise in that sort of thing.


Is it an original '575' (boxy silver case) or a K4 (black or white moulded case)? As I understand it the reason for the K range was to improve the inadequate cooling at the effects gate of the original 575. I have a soft spot for opti's and would generally rather watch a nice moiré effect than a digital loop but that's probably just nostalgia (and too much poorly thought out digital content). I'd still be buying opti stuff for my own entertainment if the 2nd hand prices weren't so high.
Yeah original 575.
He was based I. Brighton. Will find details. 

Problem with opti now is that it has become a collect able. 

I have ten, plus some spares. 
The new vari speed gates are good. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote woody2 Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2020 at 4:33pm
Originally posted by monkeypuzzle monkeypuzzle wrote:

oh and while we're at it... don't forget the original method of an Over Head Projector (OHP), a fish tank full of water, some coloured oils and someone on fist full of microdots happily playing with it all night long....Tongue


Back in the mid-80s you could get a video/ computer tablet that sat on top of a 400w OHP.
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imageoven View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote imageoven Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2020 at 4:28pm
Originally posted by norty303 norty303 wrote:

Originally posted by DigbethDave DigbethDave wrote:

I should imagine he will have told hold out a while for that, seems expensive for such an old, niche fixture no?


They are a tradable commodity still. Not much else does what they do, and they are in short supply. Most quantities held by a few people who specialise in that sort of thing.


Is it an original '575' (boxy silver case) or a K4 (black or white moulded case)? As I understand it the reason for the K range was to improve the inadequate cooling at the effects gate of the original 575. I have a soft spot for opti's and would generally rather watch a nice moiré effect than a digital loop but that's probably just nostalgia (and too much poorly thought out digital content). I'd still be buying opti stuff for my own entertainment if the 2nd hand prices weren't so high.
Keep pushing on, things are gonna get better.
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norty303 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote norty303 Quote  Post ReplyReply Direct Link To This Post Posted: 22 September 2020 at 1:31pm
Originally posted by DigbethDave DigbethDave wrote:

I should imagine he will have told hold out a while for that, seems expensive for such an old, niche fixture no?


They are a tradable commodity still. Not much else does what they do, and they are in short supply. Most quantities held by a few people who specialise in that sort of thing.

One thing that I would say about the 250's is they are massively improved by use of alternative lenses to the stock Opti ones. So look at Kodak, Docter, etc. I have some Docter zoom lenses and the light output difference is incredible.

One thing in the favour of the Opti stuff is it's a self contained unit, you can throw them up somewhere with just some power and let them do their analogue thing.
Video projectors are good (I've just bought some - Epson 6k's) but need a bit more infrastructure to do their thing (including content distribution systems like Datapath).
I'm currently trying to find money for new cable stocks, particularly where you might need long cable runs, so you're into HDBaseT or SDI, so adaptors for older projectors too. Its another expense rabbit hole.

Simple things like lenses are a good example. I can get a long throw zoom lens for an Opti for £40-80.
An equivalent lens for one of my projectors is at least £800.
And the Opti doesn't suffer the contrast issues of a video projector (assuming you aren't with deep pockets for laser based projectors)
Try taking a dark room and putting up a single 250.
Then do the same with a video projector and see if the grey rectangle is acceptable.
My laser stuff: Frikkin Lasers
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AM55 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AM55 Quote  Post ReplyReply Direct Link To This Post Posted: 09 September 2020 at 7:54pm
Originally posted by Digbethdave Digbethdave wrote:

I've got some solar 250 if you want to try them out. 


Thanks for the offer Dave but I think monkeypuzzle has sold me on the projector/laptop idea. Maybe me wanting some Opti kit is based more on old school nostalgia than practicality.


Originally posted by monkeypuzzle monkeypuzzle wrote:

Yep, I have a few of the Sanyo XP / Eiki LC projectors


I have just had a look on ebay and they seem very reasonable Thumbs Up
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Digbethdave Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 11:59pm
Originally posted by AM55 AM55 wrote:

[QUOTE=Digbethdave]There is a 575 available on a fb group I'm on. He wants £1000. 

I should imagine he will have told hold out a while for that, seems expensive for such an old, niche fixture no?

[QUOTE]
Yeah, but he reckons he has ten. 
The K series and gobo Pro are worth looking at.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Digbethdave Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 11:57pm
I've got some solar 250 if you want to try them out. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote monkeypuzzle Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 9:49pm
oh and while we're at it... don't forget the original method of an Over Head Projector (OHP), a fish tank full of water, some coloured oils and someone on fist full of microdots happily playing with it all night long....Tongue
blah blah blah blah blah......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote monkeypuzzle Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 9:46pm
oh and look for Source Magma Projectors. There are also lots of small lower powered oil effects that are regularly used within the special needs and sensory room worlds. A clutch of these may fit the bill if the rest isn't to bright and they aren't very expensive..
blah blah blah blah blah......
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Post Options Post Options   Thanks (0) Thanks(0)   Quote monkeypuzzle Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 9:37pm
Yep, I have a few of the Sanyo XP / Eiki LC projectors and they still hold their own. Quite a few lens options which can be found for good money if you're patient. Coupled with an old laptop and a few long VGA cables and away you go...
blah blah blah blah blah......
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AM55 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AM55 Quote  Post ReplyReply Direct Link To This Post Posted: 08 September 2020 at 9:17pm
Originally posted by Digbethdave Digbethdave wrote:

There is a 575 available on a fb group I'm on. He wants £1000. 

I should imagine he will have told hold out a while for that, seems expensive for such an old, niche fixture no?

Originally posted by monkeypuzzle monkeypuzzle wrote:

a micro computer would be brighter and more flexible.

Looks like I will be going down a projector route then. For 2 units some oil wheels and some rotators I'd probably be looking at £300 plus so I 'll see what I can get projector wise for that even if it's on the bigger and older side.


Edited by AM55 - 08 September 2020 at 9:21pm
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