RE: filmscanners: Re: filmscanners: supra 400
= Original Message From Rob Geraghty [EMAIL PROTECTED] = Tom wrote: Not an answer, but I had exactly the same problem with Supra 400. Stopped using it even though it is supposed to be 'scanner optimized'. I have a number of supra 400 images that I will need to get decent scans of. Using my SS4000 I get terrible grain aliasing making the quality unacceptable. Odd. I thought Tony said the SS4000 aliased less than 2700ppi scanners. Can someone explain this to me? ISTM that people are seeing grain at 4000ppi and calling it aliasing? I suspect that these 4000dpi scanners really only have 3200dpi's worth of resolution - which is hardly a million miles away from the 2900dpi of something like the LS40, say (which aliases quite strongly with Supra 400). What did that bumper review of scanners conclude about resolution? Pity Mike Duncan didn't get an SS4000... teehee. Actually I suspect that there's a noticeable difference between a 4000dpi scanner whose lens is a little soft versus another whose anti-aliasing filter is badly designed (or not there!). I suspect the Nikon scanners don't have an anti-alias filter (and erm, the optics prolly aren't upto it either) - but there seems to be very little hard information on these things as far as I can tell. I suspect if you want to use Supra 400 you should be over-exposing somewhat, just to keep your shadow detail out of the grain-aliasy bottom. I don't use Supra 400, I only have a friend's odds and sods of Supra 400 that I've scanned as reference. I haven't scanned Supra 400 because I can't buy single rolls, but Fuji Superia 400 scans OK on the LS30. Yes, it's grainy, but it has helped a lot for situations like taking aerial shots from ultralights that vibrate or leave the photographer in the breeze! I want to try Provia 400F to get the same sort of speed which hopefully less apparent grain. Provia 400 (F? are there variants?) scans beautifully - no grain aliasing in shadows on the LS40 (my mate Joel's Provia 400 - he is quite fond of my LS40 for slide scanning - I don't know how he rated it though). But you do get rather less scene dynamic range than with Supra 400, and it seems to me that you should treat it as Kodachrome when scanning (both Nikon Scan and Vuescan (on Image) produce scans that are too blue - the Kodachrome setting of NS seemed to work really well). Jawed
Re: filmscanners: Re: filmscanners: supra 400
Jawed Ashraf [EMAIL PROTECTED] wrote: the photographer in the breeze! I want to try Provia 400F to get the same sort of speed which hopefully less apparent grain. Provia 400 (F? are there variants?) scans beautifully - no grain aliasing in shadows on the LS40 (my mate Joel's Provia 400 - he is quite fond of my LS40 for slide scanning - I don't know how he rated it though). I've never seen Provia 400 but I doubt it is the same film as 400F. Provia 400F uses the same emulsion technology as Provia 100F which is the finest grained transparency film currently on the market AFAIK. I've tried one roll of 400F and the grain seemed quite acceptable to me. Nothing like the invisible grain of 100F of course. But you do get rather less scene dynamic range than with Supra 400 I'd expect that, but it's reducing apparent grain I'm really after. Superia 400 is OK, and I don't think Supra 400 is worth the higher price in comparison. Rob
Re: filmscanners: Re: filmscanners: supra 400
Obviously the Provia films are slides and the Superia are negs, just to clarify. Provia 400 is a miserable film (also sold as Sensia II 400). It is grainy, has poor color, often shifting very cyan, and is too contrasty in bright light, which is the only way to get decent color out of it, which sort of defeats the purpose. Provia 400F is a new beast, and has received very good reviews. I have a few rolls waiting for low light situations, but haven't used them yet. Art Rob Geraghty wrote: Jawed Ashraf [EMAIL PROTECTED] wrote: the photographer in the breeze! I want to try Provia 400F to get the same sort of speed which hopefully less apparent grain. Provia 400 (F? are there variants?) scans beautifully - no grain aliasing in shadows on the LS40 (my mate Joel's Provia 400 - he is quite fond of my LS40 for slide scanning - I don't know how he rated it though). I've never seen Provia 400 but I doubt it is the same film as 400F. Provia 400F uses the same emulsion technology as Provia 100F which is the finest grained transparency film currently on the market AFAIK. I've tried one roll of 400F and the grain seemed quite acceptable to me. Nothing like the invisible grain of 100F of course. But you do get rather less scene dynamic range than with Supra 400 I'd expect that, but it's reducing apparent grain I'm really after. Superia 400 is OK, and I don't think Supra 400 is worth the higher price in comparison. Rob
Re: filmscanners: Re: filmscanners: supra 400
Provia 400F is a new beast, and has received very good eviews. I have a few rolls waiting for low light situations, but haven't used them yet. Deservedly so , it behaves just like the 100F with very fine grain , just 2 stops faster.. I've had a magazine cover published with a pic shot using this film. Steve
RE: filmscanners: Re: filmscanners: supra 400
Well I stand corrected then - it was 400F that Joel brought round. It still tends to blue (cyan if you prefer since I suspect that's technically correct) when scanned, though. Definitely not miserable. Jawed -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Arthur Entlich Sent: 06 September 2001 16:38 To: [EMAIL PROTECTED] Subject: Re: filmscanners: Re: filmscanners: supra 400 Obviously the Provia films are slides and the Superia are negs, just to clarify. Provia 400 is a miserable film (also sold as Sensia II 400). It is grainy, has poor color, often shifting very cyan, and is too contrasty in bright light, which is the only way to get decent color out of it, which sort of defeats the purpose. Provia 400F is a new beast, and has received very good reviews. I have a few rolls waiting for low light situations, but haven't used them yet. Art Rob Geraghty wrote: Jawed Ashraf [EMAIL PROTECTED] wrote: the photographer in the breeze! I want to try Provia 400F to get the same sort of speed which hopefully less apparent grain. Provia 400 (F? are there variants?) scans beautifully - no grain aliasing in shadows on the LS40 (my mate Joel's Provia 400 - he is quite fond of my LS40 for slide scanning - I don't know how he rated it though). I've never seen Provia 400 but I doubt it is the same film as 400F. Provia 400F uses the same emulsion technology as Provia 100F which is the finest grained transparency film currently on the market AFAIK. I've tried one roll of 400F and the grain seemed quite acceptable to me. Nothing like the invisible grain of 100F of course. But you do get rather less scene dynamic range than with Supra 400 I'd expect that, but it's reducing apparent grain I'm really after. Superia 400 is OK, and I don't think Supra 400 is worth the higher price in comparison. Rob
Re: filmscanners: Re: filmscanners: supra 400
On Thu, 6 Sep 2001 10:08:20 +1000 =?iso-8859-1?Q?Rob=20Geraghty?= ([EMAIL PROTECTED]) wrote: Odd. I thought Tony said the SS4000 aliased less than 2700ppi scanners. Can someone explain this to me? ISTM that people are seeing grain at 4000ppi and calling it aliasing? It is utterly dependent on the film - not only grain size, but the sharpness of individual dye clouds or grains, and the degree to which they overlap. I have no grain aliasing at all that I can see with Fuji Superia 100, 400, 800, but have seen some with rather overexposed 200. I don't use Kodak colour neg much, but never saw any problems with PJM640 or 400. In general, the higher the pixel density the less often you will encounter grain aliasing and the less destructive will be its effects. Regards Tony Sleep http://www.halftone.co.uk - Online portfolio exhibit; + film scanner info comparisons
