Honestly, that is probably the most overrated and exaggerated point in current film discussions. Because for more than 30 years now we have really excellent built-in exposure meters (and of course excellent hand-held meters), several built-in metering modes in cameras, very precise shutters, semi-automatic or automatic modes and so on, all of that making it so extremely easy to get a correct exposure. Even for total beginners with no knowledge about film and correct exposure.
I started shooting reversal film at the age of 14, with my first own camera, a Nikon FM (still have it). It has a quite simple 60/40 weigthed metering. Nevertheless even for me as a beginner it was easy to get 95% correct exposed transparencies.
Now with my F6 I get 99% perfect exposed shots, and the 1% rest is only 1/3 to 2/3 stop away from perfection, but still very good and usable.
My Mamiya 645 Pro TL has also a very precise metering, and with my TLR I just use my Gossen Digipro F2 hand held meter.
So no problems at all to get perfect exposure in medium format either.
With all these excellent metering tools we have today it is really extremely easy to get perfect exposures
When you are in Germany next time let's meet, and I will show you some examples. You will be very impressed, promised.
I just started LF last year and shoot Velvia 50. So I'm disappointed they will be discontinuing it. However, I still have my MF equipment and could shoot that in Velvia 50. But what do I do with my LF equipment then?
Of course not, but since you are scanning anyway, with a little editing skill you can make it look exactly like Velvia.
And why is it sheet films are discontinued and not roll films, for Velvia 50?
You both are seemingly to young to know, but there were times when a 50 ASA film was called a fast film. And people were not stuck to studio stills.
More like 5 stops (maybe a bit more if you are really lucky) of straight line, about 7-8 stops visually viewable under normal circumstances, getting anything more requires pumping light into the Dmax in a scanner/ repro situation & hoping you get enough information to reconstruct somewhat meaningful colour.
Astia was overall probably Fuji's best transparency material (though nowhere near as sharp), but most of the people its sensibilities appealed to in terms of contrast, colour and latitude seem to have gone for colour neg instead (which gives you all of those, plus better sharpness for making prints).
All true but nothing that can be compared to color negative film tolerance to overexposure. 2-3 stops is like nothing (done and checked) getting additional shadow information if needed, and you can go even higher to 5-6 stops loosing very little highlights information compared to the hughe overexposure. When I load Portra 400 in my camera I know I am ready for anything.
That is a very kind offer, I would love to see those prints. It will very difficult to happen though, but just in case: Where are you located in Germany?
That correlates exactly with my results after calibrating 4x5 CHS 100 II developed in FX-39 II 1+19 using Jobo Expert drums at 45 r.p.m on a CPP-2. Best negatives at EI 50....ADOX CHS 100 II...at EI 50/18° for perfect shadow detail and tonality...
Yes, you can overexpose colour negative film. You have much overexposure tolerance / latitude (and with colour reversal a significant underexposure latitude [at least more than most photographers know, see my post above and the link] ).
But, that is just an exposure latitude, and not (!) a general quality latitude concerning all technical parameters!
You have to pay a price, and make quality compromises, when you overexpose more than one stop:
- less sharpness due to diffusion effects (the more overexposure, the lower the sharpness)
- less resolution due to diffusion effects (the more overexposure, the lower the resolution)
- less speed (longer shutter speeds or wider apertures needed)
- and with more than one stop overexposure also less highlight detail compared to correct exposure at box speed; of course film is still much much better than digital with huge overexposure. But correct exposure gives better highlight detail than massive overexposure.
- decreasing quality in colour rendition with bigger overexposure.
You're welcome.
In Lower-Saxony, Celle and Hannover. I am also often in Berlin. So maybe we could meet next year in Berlin on the Berlin Photo Week, or the AnalogueNOW film photography festival.
Or you join the regular "Northern Germany Film Photographers Meetings" in Hannover which I organise. The next will be on November, the 27th.
Henning
Lachlan, I have to disagree here because of the results in my photography test lab and my daily results in shooting dozens of transparency films p.a. It is more than 5 stops straight. And about 8 stops visible on a normal light table, and more than 8 stops in projection. How much more is simply depending on the projector used (light power (watts), quality of condensor and lens quality) and the quality of the screen (matte or high reflection screens like the DaLite HP surface, which has been best in class).
And the DR is also dependent on the colours, some colours react with better DR than others.
And you can pull lots of details out of the shadows using a real drum scanner with photomultiplyers. Most photographers simply do not know how much information is still there in the shadows with transparencies. Especially if they don't use projection, or if they only use these cheap amateur scanners with their low DR range (flat bad scanners being the worst).
Here just an example from me: I had a defect in the light meter in one of my Mamiya 645 PRO TL bodies (problem now solved) resulting in severe underexposure (2-3 stops). But the completely underexposed shadows could be saved by drumscanning, as the detail really is on the film, and not lost. Please look here at the scans on a Heidelberg Tango Drum Scanner made by scan expert Sebastian Dziuba (just scroll down to the portrait of the young lady):
https://www.fineartdrumscanning.de/bilder/
Unfortunately lots of prejudices and misinformation is spread about transparency film. Mainly by people with no or very little experince with it. And they are just repeating the myths which are spread online.
Colour reversal film is much better than most photographers think. And in many parameters it offers significantly better quality than CN film (better sharpness, higher resolution, finer grain, better colour brillance, the unique three-dimensional impression in projection and under an excellent loupe, the better versatility, advantages in scanning, cost advantages in several applications).
Astia 100F fan here. Still enjoying it because I am continuing using it (still have some in the freezer). Outstanding film. But I would not go so far to call it the best in general. The best for portrait and fashion, and for very high object contrasts, yes. But Provia 100F, the Velvias and not to forget the outstanding Provia 400X (by far one of the best ISO 400/27° films ever, destroys Portra 400 completely in terms of detail rendition, Provia 400X can be enlarged much more) all have their strengths and unique advantages, too.
And I have to disagree concerning sharpness of prints being generally better with CN film: The sharpest prints I (and many of my experienced photographer friends) have got / seen are from reversal film. Cibachrome / Ilfochrome and drum scans exposed on RA-4 paper. The superior sharpness of reversal film itself (especially the current Fujichromes, as E100 is less sharp and lower resolving than the Fujichromes) at the start of the imaging chain is significant.
Best regards,
Henning
Two of those containers are full of hazardous material that self ignites. They have started burning, and can't be extinguished with water. The weather here is worsening, and this is a real concern.I found out where all the film is we've been waiting for.
https://www.cbc.ca/news/canada/british-columbia/shipping-containers-juan-de-fuca-strait-1.6222341
Figures they'd put the chemicals and film in the same container.Two of those containers are full of hazardous material that self ignites. They have started burning, and can't be extinguished with water. The weather here is worsening, and this is a real concern.
By the way, I already linked to that story in the thread about difficulties obtaining Kodak colour chemicals!
And I have to disagree concerning sharpness of prints being generally better with CN film: The sharpest prints I (and many of my experienced photographer friends) have got / seen are from reversal film. Cibachrome / Ilfochrome and drum scans exposed on RA-4 paper. The superior sharpness of reversal film itself (especially the current Fujichromes, as E100 is less sharp and lower resolving than the Fujichromes) at the start of the imaging chain is significant.
Wouldn't chromes have an appearance of greater sharpness since it has fewer stops and more contrast and acutance?Umm this is very... interesting. The MTF curves for the Kodak C41 and E6 films showed the C41 films in general being of higher MTF than the same-speed E6 films. And Ron Mowrey (RIP) explained why this happened -- basically thanks to more freedom on the C41 films for adding interlayer effects and special couplers that improved sharpness, color purity, etc. He repeated many times, with emphasis, that the E6 films were harder to engineer because of less possibilities for applying the techniques that were possible to build into C41 emulsion.
The reversal process does give finer grain thanks to the reversal phase itself where the image now is formed of evenly exposed grains.
Note that i'm mentioning "sharpness" not "resolution", which is an entirely different thing. I am thinking you were mostly taking a look at the enlargenment done through a digital process, where the sharpness can be digitally enhanced, thus perhaps the final result in terms of both sharpness and resolution being better with E6 film.
There were many tests in the past about this topic, for example http://www.boeringa.demon.nl/menu_technic_ektar100_grainstructure.htm
Wouldn't chromes have an appearance of greater sharpness since it has fewer stops and more contrast and acutance?
I like the contrast of chromes. Negatives are boring.Transparency materials are overall less sharp (lower acutance) at the frequencies that define how 'sharp' something will look if subsequently printed/ scanned. Transparency materials are reliant on their inherent contrast (intended as final display media) to help them look 'sharp'. Some transparencies don't do too badly with large area objects (low/ very low frequencies), but fall off much more sharply in the higher frequencies than essentially any reasonably modern professional (and some amateur) colour neg stock. Resolution of a high contrast object really is not meaningful unless the MTF is there to support it. Thus you can have a nominally more moderate resolution & very high MTF on a higher latitude/ moderate contrast material which will look better than higher resolution & a more precipitous MTF fall-off on a higher contrast/ low latitude material. Transparencies give you contrast and saturation (and less of the scan op/ printer's opinion as to what they should look like) - if those matter, you live with the weaknesses. Neg stocks have different compromises.
I like the contrast of chromes. Negatives are boring.
I think that is very pesimistic view, at least for my expererience.
I accidentally overexposed by two stops a Portra 400 120 roll some years ago (forgot to change the ISO dial) and I couldn't find anything to really complaint about after developed it normall while scanning (Nikon Super Coolscab 8000 ED with AN filmholder) or enlarging to 25x25 cm. Perhhaps it was not optimal from "scientific" point of view but perfectly acceptable.
Thanks again. Difficult to justify for now a trip to Germany but perhaps could be for any of 2022 fairs.
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