Re: filmscanners: orange mask/Low contrast tranny
On Fri, 19 Jan 2001 16:23:09 - Michael Wilkinson ([EMAIL PROTECTED]) wrote: > Here in the UK Bowens used to sell a rib called the Illumitran > Here in the UK Bowens used to sell a rib called the Illumitran Yes. I still have one. Not equipped for pre-flashing regrettably, those were much more expensive. Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: orange mask/Low contrast tranny
Here in the UK Bowens used to sell a rib called the Illumitran for copying slides.It comprised a lightbox with a built in flash plus focusing light ,a filter drawer,a stand to hold the bellows ,lens and camera. Ive still got mine ,it works and is now over 20 years old. Later versions had a device fitted which I believe was to pre flash film to control contrast,I dont know exactly how it workrd as Id already evolved my own technique which was easily repeatable and |I try to work on the basis of if it is not broken it does not need fixing. regards Michael Wilkinson. 106 Holyhead Road,Ketley, Telford.Shropshire TF 15 DJ [EMAIL PROTECTED] www.infocus-photography.co.uk For Trannies and Negs from Digital Files
Re: filmscanners: orange mask/Low contrast tranny
One suggested method to reduce contrast on chromes is to pre-flash them at, I believe, 1/10th their proper exposure. This creates a "fog" which reduces the contrast. Art Michael Wilkinson wrote: > Tony, > Despite protestations from others on the list concerning only processing > at industry standards > it is easy to reduce contrast on tranny film. > You do need to experiment but basically you need to overexpose and > underdevelop. > For a long time we used this technique to make duplicate transparencies > until we were able to purchase duplicating film for the job. > We used Ektachrome tungsten,overexposed by 2 stops and reduced the fist > dev time from 7 minutes to 5 minutes. > To stop anyone shouting what about the cross curves we used a different > filter pack to compensate. > this is a simple technique which works exceedingly well but you must > experiment. >
Re: filmscanners: orange mask/Low contrast tranny
On Wed, 17 Jan 2001 21:17:11 -0800 (PST) Jon ([EMAIL PROTECTED]) wrote: > How about pre-fogging trans. film? Does anybody really do that to > reduce contrast? It's a common technique in duping using a low-level pre-flash, but would be very inconvenient in a camera Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: orange mask/Low contrast tranny
Ive used this technique with negative material with a degree of success but its a hit and miss affair until you have experimented with it. The secret is to pre expose the film just enough to overcome the films natural inertia,or in otherwords the films resistance to actually start reacting to the light falling on it. It used to be quite common when Hand printing B+W before Resin Coated multigrade paper was available to pre flash paper to reduce contrast. this was easy to control as the results were there to see after 3 minutes. All in the "good old days" of course. Michael Wilkinson. 106 Holyhead Road,Ketley, Telford.Shropshire TF 15 DJ [EMAIL PROTECTED] www.infocus-photography.co.uk For Trannies and Negs from Digital Files ~ - Original Message - From: "Jon" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, January 18, 2001 5:17 AM Subject: Re: filmscanners: orange mask/Low contrast tranny : How about pre-fogging trans. film? Does anybody really do that to : reduce contrast? : : Jon : : __ : Do You Yahoo!? : Get email at your own domain with Yahoo! Mail. : http://personal.mail.yahoo.com/
Re: filmscanners: orange mask/Low contrast tranny
How about pre-fogging trans. film? Does anybody really do that to reduce contrast? Jon __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/
Re: filmscanners: orange mask/Low contrast tranny
On Wed, 17 Jan 2001 11:12:34 - Michael Wilkinson ([EMAIL PROTECTED]) wrote: > Despite protestations from others on the list concerning only processing > at industry standards > it is easy to reduce contrast on tranny film. > You do need to experiment but basically you need to overexpose and > underdevelop. > For a long time we used this technique to make duplicate transparencies > until we were able to purchase duplicating film for the job. > We used Ektachrome tungsten,overexposed by 2 stops and reduced the fist > dev time from 7 minutes to 5 minutes. > To stop anyone shouting what about the cross curves we used a different > filter pack to compensate. > this is a simple technique which works exceedingly well but you must > experiment. I must admit I have always regarded pulling colour film as a Very Bad Thing, because of the crossed curves. I know studio guys who do it, to about -1stop max (more usually -2/3 or -1/3, differences I can barely see), but as you say they use CC filters to mitigate the effects. I shoot nearly all 35mm, and CC's really don't fit well with that. > All this talk of a film for scanning gives rise to the thought that the > manufacturers are probably looking at the rapid progress of digital > cameras and saying why bother ! > I use a scan back on my Studio camera and the resulting digital files > are far superior to those produced on our drum scanner from any make of > film ! > Smooth grain free images with zero noise in the shadow areas and perfect > colour balance at the capture stage with the very minimum of > rectification work needed in Photoshop. > Film still has portability on its side along with easy storage and long > life , but that WILL change . Yes! I've seen the sort of results possible and agree, digital already surpasses film in many respects (oh, the contrast range after tranny:). It's a shame that sort of quality is presently limited to MF/sheet cameras and costs as much as an upmarket car. Regards Tony Sleep http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & comparisons
Re: filmscanners: orange mask/Low contrast tranny
Tony, Despite protestations from others on the list concerning only processing at industry standards it is easy to reduce contrast on tranny film. You do need to experiment but basically you need to overexpose and underdevelop. For a long time we used this technique to make duplicate transparencies until we were able to purchase duplicating film for the job. We used Ektachrome tungsten,overexposed by 2 stops and reduced the fist dev time from 7 minutes to 5 minutes. To stop anyone shouting what about the cross curves we used a different filter pack to compensate. this is a simple technique which works exceedingly well but you must experiment. All this talk of a film for scanning gives rise to the thought that the manufacturers are probably looking at the rapid progress of digital cameras and saying why bother ! I use a scan back on my Studio camera and the resulting digital files are far superior to those produced on our drum scanner from any make of film ! Smooth grain free images with zero noise in the shadow areas and perfect colour balance at the capture stage with the very minimum of rectification work needed in Photoshop. Film still has portability on its side along with easy storage and long life , but that WILL change . Michael Wilkinson. 106 Holyhead Road,Ketley, Telford.Shropshire TF 15 DJ [EMAIL PROTECTED] www.infocus-photography.co.uk For Trannies and Negs from Digital Files - Original Message - From: "Tony Sleep" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, January 16, 2001 11:21 PM Subject: RE: filmscanners: orange mask : On Mon, 15 Jan 2001 14:09:27 -0600 Henry Richardson ([EMAIL PROTECTED]) wrote: : : > Along these same lines, would it be possible to produce a positive film that : > has characteristics better suited to scanning, e.g., lower contrast and : > maybe less density in the shadows? : : Must admit, I've often wondered why nobody makes a low contrast tranny film, capable : of more of the brightness range on sunny days. I suspect because they are designed to : recreate original scene brightness ratios when projected, and a low-contrast film : might capture more range but would look impossibly flat and dull. : : Regards : : Tony Sleep : http://www.halftone.co.uk - Online portfolio & exhibit; + film scanner info & : comparisons
