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-   -   light box (http://www.film-and-darkroom-user.org.uk/forum/showthread.php?t=13898)

big paul 7th August 2021 06:34 AM

light box
 
1 Attachment(s)
I bought one of these for my wife ,but i use it more than she does .I have a big X-ray type light box for looking at my negs but I have found this just as good and a lot lighter and smaller £23.00 cheap as chips...



Attachment 4232

John King 7th August 2021 07:26 AM

If anyone else is interested I have 30" x 10" lightbox that I would like to get rid of. send me a message if you are interested.(It is to big and quite heavy to post so would have to be collected.) It has daylight quality tubes.

Mike O'Pray 7th August 2021 11:11 AM

I assume from Paul's pic that modern lightboxes are almost flat. I presume that there is some kind of a light behind the screen that is similar to modern TVs?

Not bad value for £23 and if my assumption about the way of lighting is correct there may be no way to change tubes but what hardly matters if like a TV the light last years.

Mike

Terry S 7th August 2021 11:50 AM

Quote:

Originally Posted by Mike O'Pray (Post 141142)
I assume from Paul's pic that modern lightboxes are almost flat. I presume that there is some kind of a light behind the screen that is similar to modern TVs?

Not bad value for £23 and if my assumption about the way of lighting is correct there may be no way to change tubes but what hardly matters if like a TV the light last years.

Mike

I have one of these light pads too, but paid quite a bit less on ebay, making it an even better buy!

They are very thin and seem to be a couple of sheets of white perspex with some form of led lighting in it, to put it simply.

Mine works off a two ended USB cable and I power it in the darkroom with one of the small power packs that are mostly used to charge mobile phones when out and about and when it has lost its power. I got mine from the pound shop for about £4 and it is about the size of a Mars bar.

Terry S

P.S. Just looking on ebay, these are what I'm talking about and the cheapest I could find. the power pack has p/p added but as said they are also available in the pound shop:

https://www.ebay.co.uk/itm/384289648...UAAOSwvqhg-Uhf

https://www.ebay.co.uk/itm/274571998...UAAOSwTbBfrU1y

Mike O'Pray 7th August 2021 03:29 PM

The mars bar chargers are new things to me Terry. It looks as if the light box is 5v and the small end of the wire that comes with it plugs into the box and the other end( the larger end) goes to the charger. How is the "mars bar" charger plugged in to the mains?

The light box wire looks as if its big end will go straight into the kind of 3 pin plug that charges a unit by simply plugging it into the mains so is the mars bar charger only required if you do not have one of these plugs and leads that come with a mobile phone?

Thanks

Mike

Terry S 8th August 2021 12:13 PM

Quote:

Originally Posted by Mike O'Pray (Post 141146)
t looks as if the light box is 5v and the small end of the wire that comes with it plugs into the box and the other end( the larger end) goes to the charger. How is the "mars bar" charger plugged in to the mains?

It's easily charged by putting a USB plug and cable into the power pack and then another USB plug into a USB mains plug.

Quote:

Originally Posted by Mike O'Pray (Post 141146)
The light box wire looks as if its big end will go straight into the kind of 3 pin plug that charges a unit by simply plugging it into the mains so is the mars bar charger only required if you do not have one of these plugs and leads that come with a mobile phone?

Thanks

Mike

Yes you are mostly correct on your assumption, and I wrote similar before reading the second part of your message.

The 'mars bar' charger, doesn't come with a charger, as it is connected directly to a USB mains plug by a USB cable.

And there are I'm sure, other ways of using the tablet without the mentioned power pack, like using a cable that goes directly into the mains, as long as the mains socket is close enough to where you want to use the tablet, or you have a long USB cable.

I hope that this all makes sense... :)

Terry S

P.S. And a cheaper power pack has just been recommended to me by ebay...:

https://www.ebay.co.uk/itm/123526022...Cclp%3A2047675

Mike O'Pray 8th August 2021 12:55 PM

One more obvious question which I failed to ask: How long will the lightbox operate, once fully charged, before needing another charge or does it in fact need to be constantly plugged in to the charger?

Thanks

Mike

EdmundH 8th August 2021 03:14 PM

These light boxes have no internal battery, so it needs to be plugged into a usb charger or power bank whenever you want it lit


Sent from my iPhone using Tapatalk

Michael 8th August 2021 04:50 PM

Quote:

Originally Posted by EdmundH (Post 141152)
These light boxes have no internal battery, so it needs to be plugged into a usb charger or power bank whenever you want it lit


Sent from my iPhone using Tapatalk

Or something with a live USB socket, like a computer.

Mike O'Pray 8th August 2021 06:05 PM

Quote:

Originally Posted by EdmundH (Post 141152)
These light boxes have no internal battery, so it needs to be plugged into a usb charger or power bank whenever you want it lit


Sent from my iPhone using Tapatalk

Ah, thanks, that answers the question. I was hoping that it might have been portable in a way the old lightbox wasn't but so be it

Mike


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