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Fall Path |
My blog on Plustek scanner mentioned my purchasing of the scanner software Vuescan to replace the software that came with the scanner. Up to now I have avoided using it for my epson v500 as I find the epson scanner software very easy to use. For a change I decided to try the Vuescan
DNG output. DNG is equivalent to a
RAW file only in a Adobe format. This turns out to have several advantages if you happen to own
Lightroom or
Photoshop.
- You don't have to fuss with scanner settings for each individual image (Just set gain and base colour on an unexposed part of the negative once per roll)
- You can extract and save all the information that the scanner can provide in a standardized archival form
- Fits into Lightroom's non destructive workflow so reprocessing does not degrade the scan.
- Merges your film and digital workflow
- You can make and apply your own colour profiles, curves, fx and other post processes as many times as you want
- You start out with a RAW file that has more information and less noise then a conventional tiff scan with some curves applied during the scanning phase
Warning the Vuescan DNG has a linear gamma of 1 the same as a scanner so opening up a file out side of a gamma aware program will result in an image seeming to have a very strange contrast curve.
New note on Vuescan/Epson V500 here.
For Pixel Peekers
Have a look at this example of 35mm Nikon FMn2 105mm hand held street portrait on HP5 film developed in
Xtol + Rodinal and scanned on my Plustek 7400
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Original scan from the Plustek B&W scanned as a 48 bit tiff |
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1:1 with some slight sharpening in post |
Lomography DigitaLIZA
I have to give the
Lomography DigitaLIZA 120 Format film holder a 4 out of five rating compared to the epson holder 2.4/5 rating. It's so much better for keeping curly film flat. It's also easy to load the film.
Tips:
- For the digitiliza make up a template that you can place on your scanner bed to make it easy to align the Digitaliza with the scanner bed (I made mine out of a stiff cardboard looks like a thick L) be careful not to cover the calibration area of the scanner
- I use a rocket blower rather then canned air to blow any dust off the negative.
- A pair of silk inner liner gloves (from a sports or outdoor shop) are much better then cotton gloves for handling negatives
Well priced alternative to a flatbed scanner.7200 dpi scanner (when measured with a target it turns out to be 3800 dpi in both directions which is right in Nikon cool scan territory)
Actual Dmax > 3.6 and can be increased through multiple exposure mode.
The Negative:
Scanning is done through the included Silverfast Se plus software.
Manual feeder so after you load the carrier you have to push it through by hand one frame at a time. This is not really a problem as I hand correct every negative
No digital ICE (not really a problem for me as I don't use it anyway and it doesn't work on B&W)
My Findings:
If you have any form of workflow the Silverfast software is a piece of junk you would have to spend at least the cost of a scanner to upgrade to a usable version. Besides a rather useless raw mode it doesn't have 48 bit per colour save function. The raw mode would be good if it integrated with lets say Lightroom but it doesn't. It's designed to work with another pricey piece of software you have to buy from them. I don't know about you but I only like to scan once and use the file as a master.
To top it off they keep on telling you to read a 500 page manual and strongly implying that if you want to be a pro you are using the wrong scanner software.
The solution is easy buy reasonably priced Vuescan software. The pro has lifetime support, useful raw workflow and can support multiple scanner types.
Scanning B&W I used some nice grainy HP5+ and found out this:
Multi-exposure is effectively a two pass scan with each scan taken at a different exposure, the 2 passes are then blended together. This actually works and extends the dmax and dynamic range for difficult frames. There is a slight but noticeable lose of resolution. most of which can be recovered with some of the hated USM filtering. Not much need for this function with HP5 I will have to wait until I test it on some high dynamic range shot using TMAX film.
The raw scans pre-adjusted with a film profile seem to contain all the tone information with no banding or noise. Thus they can act as masters.
For 3600dpi scans there was marginally better detail and micro-contrast when scanning at 7200dpi at letting Vuescan reduce the output to 3600dpi (down sampling). This seems to be real not some USM shapening slight of hand (USM was off). Makes sense as the measured on a target dpi is 3800dpi and downsizing by 2 is equivalent to multiple sampling without the alignment problems.
As scan time is almost 4 times as long at 7200dpi I will use 3600dpi scans on images that I don't care so much about and 7200dpi down sampled to 3600dpi on images that look interesting.
Also of slight interest was that letting the software convert from the colour scan to BW gave slightly better micro-contrast then converting the 48bit colour to 16 bit B&W after the fact or scanning in 16bit B&W.
I tested the same negative on my Epson V500. The Epson had less then half the actual resolution and more compression in the grey scale. The hp5 film grains were blobs instead of salt and pepper with the Plustek.