[rollei_list] Re: Scanning sheets of colour negatives
- From: "Austin Franklin" <austin.franklin@xxxxxxxxxxx>
- To: <rollei_list@xxxxxxxxxxxxx>
- Date: Wed, 18 Jun 2008 08:33:44 -0400
Hi John,
The 836XL is a tabloid size scanner, and therefore will scan an entire
contact sheet in one shot. They are going relatively cheaply (considering
what you get) for probably $200 or not much more. The later version with
higher resolution (1640XL) is going for $400. The 836XL is SCSI only I
believe, but the 1640XL is SCSI and USB, so I am strongly considering
getting one.
Regards,
Austin
> -----Original Message-----
> From: rollei_list-bounce@xxxxxxxxxxxxx
> [mailto:rollei_list-bounce@xxxxxxxxxxxxx]On Behalf Of John Wild
> Sent: Wednesday, June 18, 2008 4:02 AM
> To: rollei_list@xxxxxxxxxxxxx
> Subject: [rollei_list] Re: Scanning sheets of colour negatives
>
>
> Thanks Aaron & Austin, I will do some more experimentation with a
> digital camera when I get 'play' time.
>
> I also understand the point about turning off the scanner light for
> contrast. My HP 5470C has the transparency scanner illuminated
> attachment. If I plug that in and leave it on the side then use a light
> box to cover a larger area, it might work too................?
>
> Best regards
>
> John
>
>
> -----Original Message-----
> From: rollei_list-bounce@xxxxxxxxxxxxx
> [mailto:rollei_list-bounce@xxxxxxxxxxxxx] On Behalf Of Aaron Reece
> Sent: 17 June 2008 19:31
> To: rollei_list@xxxxxxxxxxxxx
> Subject: [rollei_list] Re: Scanning sheets of colour negatives
>
>
> "Easy and cheap" would appear to be the hangups here. The
> problem with nearly all film-scanning flatbeds is that the backlight for
> the transparency adapter is less than 8x10, so it is impossible to scan
> an entire sheet of negatives or slides in one pass. I think either Epson
> or Canon had one for a brief time but neither company has such a product
> listed on its website at the moment. I could also be imagining things
> again. Removing strips of negatives or (worse) individual slides from
> their Print-View sheets and mounting four to six at a time in scanner
> adapters is a Sisyphean task when faced with large numbers of images to
> scan.
>
> I would venture that the biggest problem you face is that the
> internal front-light in the scanner is still shining on your negatives,
> when what you want is to disable this light and rely entirely on the
> backlight for illumination. This is why the contrast is so low.
> Manufacturers' transparency adapters do this automatically. If you are
> good with electronics I suppose it would not be too big a challenge to
> disable the front-light yourself - probably just a matter of knowing
> which cable to clip.
>
> On the other hand, you could try the digital camera route. I
> have done this with B+W negatives and with color slides and the results
> were acceptable - certainly good enough for contact sheet purposes.
> Simply place the negatives on the light box (a clear window would
> probably work just as well), set your camera to macro mode and turn off
> the flash, and snap each frame in sequence. This method is very fast to
> capture the images, but you will have to process the digital images for
> color correction and correct cropping later. If you have Photoshop you
> could probably automate this process if you are not too picky about the
> results. If photographing negatives, you will need to use the Levels
> and/or Curves control to set the black and white points, as the contrast
> will be quite small.
> I have not photographed an entire sheet of transparencies in one
> frame, but rather photographed each slide or negative on its own.
> Then again, I am using a 5-year old low-resolution digital P&S camera. A
> newer, higher-resolution camera might produce acceptable results
> photographing the entire sheet, but it only takes one second or so to
> frame, focus, and shoot each negative, so why bother?
>
>
> Best regards,
> Aaron
>
>
> On Jun 17, 2008, at 1:25 PM, John Wild wrote:
>
> > Having a Minolta Scan Multi MF film scanner, I get the all the quality
>
> > for an individual image I need but I just want to be able to 'contact'
> > sheets of negs quickly and cheaply for reference, so I can select the
> > images I want without having to squint through a magnifier over a
> > light box and try to mentally invert the negative.
> >
> > It's something I've been thinking about for ages but only periodically
>
> > get the time to experiment. Technology changes so rapidly that I am
> > surprised nothing has been developed with this idea in mind.
> >
> > I haven't given up on the flatbed idea yet, I need to try other
> > combinations. I might try a digital photograph of a sheet of negatives
>
> > on a lightbox. Apparently this works for single 35mm transparencies. I
>
> > can get quite resourceful if I think there is an easy (and cheap) way
> > to do something with equipment to hand. However, I usually spend more
> > time and money trying to find a way rather than getting the proper
> > piece of equipment in the first place. You may very well be able to
> > say 'I told you so' when I buy a V500 scanner in 6 months time........
>
> > ;-)
>
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