I have not noticed color changes or exposure issues, when using Digital ICE. Also, when I did the scans I turned the color adjustment to the 2nd lowest setting - so Epson Scan is doing almost no levels adjustment, saturation or color changes. One can only imagine what these pictures look like at the lowest setting . . .
I've decided to sacrifice a roll each of the VC and NC (something I should have done right at the beginning) for testing. I'm photographing in a variety of lighting, bracketing each shot as if it were 320, 200 and 400. I suspect the film was simply stored poorly and that it has lost a full stop of speed. But there's a lot of inconsistency - some photos are smooth while others - even those taken in bright sunshine - are extremely grainy. And it really looks like dark areas are a real problem.
While I'm sure the lab isn't the greatest, here are samples from 'fresh' 400-speed consumer film that I gave in for processing at the same time as the 400VC and 400NC:
Life 400, #1, 100% crop
Life 400, #1, 1024px
Not great, but certainly nowhere near the grain of the photos above. That said, I'll try develop my sacrificial rolls at another minilab that my local photoclub recommends. I'll get prints and scans done at the same time.
You mentioned that the problem is not consistent throughout the roll. Have you noticed any pattern to the offending frames? i.e. are they more towards the beginning of the roll or does it just seem random? What's the expiry date?
Most of your ills appear to come from underexposure.
Originally Posted by allen_a_george
It's been my personal experience that Portra (and the former Vericolor) did not work well at box speed. I've always rated the stuff at half the advertised speed (160 @ 80 & 400 @ 200) and never had thin negatives - Kodak calls for a .65 average density for proper exposure and doing this (halving the speed) acheived a .68 - .70 for me and my equipment. It's the only film I've ever had to do this with.
Add to that, as has been said, that film loses speed with age, and one gets rather thin negatives.
I suspect you're shooting 35mm (reference to a minilab) - the smaller negative exaggerates grain.
Last edited by Frank Szabo; 08-19-2008 at 11:08 AM. Click to view previous post history.
"Beer is proof that God wants us to be happy."
Yes, I'm shooting 35mm, and I'd no idea I had to shoot Portra at half box speed. I'm used to overexposing by a 1/3 of a stop. That 's what I've had success with, with Superia X-Tra 400, 400H and 400UC . . .
It's random. On the first roll of NC most of the frames look washed out (in various degrees) and the grain in the shadows is really speckled and ruins the detail. Then once in a while I'll get a frame (same exposure, same lighting, same brightness range in the scene) that looks worlds better. The second roll of NC is weird; once in a while I'll get a frame or two in which the grain isn't prominent, but there's extremely low contrast.
The VC is really bad in terms of grain. The second frame in the roll has a red streak running through it - I have no idea what that is. It looks like a light leak, except I've never seen anything like that on any of the rolls I've put through this camera. Then after that I'll get some frames with over-the-top speckling (especially in black areas) and others with much less (including the black areas - which appear to be just as dark).
This is the 3rd frame in. Light leak? Would be odd - ran two rolls after this one and haven't seen it again.
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anomalous red line in film = classic xray fogging. This is why I never use anyone but fedex to ship film.
Interesting, I just found a Kodak TechPubhttp://www.kodak.com/cluster/global/en/service/tib/tib5201.shtml#SEC47
Originally Posted by frotog
and if you scroll down about 3/4 you'll see a reference to increased grain from a FULL bag X ray. The full bag type would be the more powerful scan.
I too need to get a bunch of film shipped that I just bought from an ebay auction and now I am paranoid.
Anyone have any definitive info on who X rays and who wont???
The stuff I need to ship is 160 speed.
Good question Bruce....last I checked with Fedex they were unwilling to say whether or not I could safely ship film using their service. I haven't shipped film nor have I had film shipped to me in quite some time so I haven't researched it recently. There must be some carrier that could say for certain that they will not subject your package to xrays. Perhaps you should start a new thread with this question.
Originally Posted by brucemuir
Thanks Frotog, yes maybe I will do this because I won??? over 50 rolls of 220 and I will be having it shipped within a few days or so.
Hopefully, but doubtfully I will get a definitive answer but just the nature of the question is kinda sketchy. I don't know if any of the carriers would answer anyway considering the "sensitive" nature of the query???
I need to find out though so I will more than likely be on the phone come monday morning for awhile.
I own and operate a commercial photography studio in Arkansas. For almost 30 years now I have mail-ordered my color and b/w film stock from east and west coast vendors. In ALL this time, and shipment via US Mail, FedEx ground, and Air and UPS, I have never run across a shipping related defect. The chance of film being damaged in transit from xray, or anything else is very very slim. The film is shipped via common carriers to the vendors from the manufacturers. It is then shipped from the vendor to you. If you purchase new film, it has a guarantee. If the manufacturers were at any time having problems with xray damage on new film, they would specify methods of shipping to reduce their warranty claims. To date, no film and paper manufacturer restricts shipping to any approved list of shippers.
Originally Posted by frotog
If I were you, I would "rule out" the shipping as a significant factor in the performance of the film in question. It is more likely poor storage conditions before the film got to you. Or, a poorly maintained processing line at the lab you used. Do they run test strips at the start of each day, and plot them?