I will only address the agitation question:
1) Do not worry about bromide drag with agitation intervals of 1 minute. Ilford's normal suggested agitation procedure is every 50 seconds anyway, pushing or not. I have used 2 and 3 minute intervals with DD-X without any problems, though I have not used it with HP5.
2) Extending the agitation interval to 2 minutes with DD-X 1+4 will do pretty much nothing except necessitate a longer development time (testing required). Stick with 1 minute intervals.
why don't you get another roll of HP5+ expose it the same way and process it the way ILFORD recommends as a test roll.
( judging from other threads where you asked differences between films, had people do your tests &c for you
you discounted both their results and expertise because it wasn't what you were looking for. )
i have hp5+ and i have pushed it to 3200 and i have results from that work, but it doesn't involve
127 format, or the developers you suggest you will work with. sprint has a film developer that is readily available, and works
very well with ilford films, and their website gives extremely accurate instructions on how to push process to 3200 ...
The sprint standard dev only lists pushing to 800 on the massive dev chart. So I was going to ask if the times matched but that won't work since they aren't listed.
I don't want others to DO a test, I want to know if someone has already done it, what the results were, that's all.
Thanks.
Stone,
I have shot HP5+ at 3200 a couple of times, and only found out what I already knew, that the developing times listed or produced by other photographers bear little resemblance on my own situation, and ended up with negatives that were 'flat' in the tones that were actually captured by the -3 stop exposure.
But that was pertaining to how I print and work, so it may end up being untrue for you, with your camera, water supply, etc. If you can't run a test before you develop the exposed roll, then it is going to be a crap shoot, and you may get lucky. Or not.
Next roll was fine because I adjusted developing time and gave 30% more developing time, and I get better mid tone and highlight contrast without blocking up any tones. I can't remember specifically which developer it was that I used, because it was an experiment, and I lost the notes when I moved out of my old house. It would have been Xtol, Sprint, or DD-X, but I can't be sure.
stone
i if you go to the sprint site you will find everything you need, i wouldn't use or rely on the massive development chart
for anything, while it may give tidbits of info it very well be riddled with mistakes and is obviously incomplete ...
http://sprintsystems.com/time-charts/
you will see, for every stop over / under exposed
you work off of their chart accordingly. out of habit i always over process by a little bit and sprint
wont' block up your highlights ..
you discounted sprint developer before because you said it was
"too boring" or too "plain vanilla" and the truth of the matter is, it works and works well ..
and yes, it seems you are relying on other people to do your tests for you, to feed you information
but the reality is what tom just said, it works for them and most likely will not give you anything even
remotely similar to what your results will be.
good luck with your tests
john
Thank you, I mainly am looking for the info, because I am going to be developing a roll together with my father on Thanksgiving today, and so I would like to be able to have decent results, I'm okay if the negative is flat, so long as it has detail and information and isn't completely lacking detail or information.
Thank you for giving me some information, perhaps maybe I'll increase by half of yours that would be 15%, therefore having a better chance at something in between that may give me something fairly usable, thanks.
Thanks, good info, noted, so stick to 1 minute intervals, got it.
Hey everyone!
So all the literature from Ilford States that HP5+ can be pushed to 3200.
I'm wondering if it's like D3200 where you have to develop for the next stop up, IE shoot at 3200 and Dev for 6400...
Delta 3200 has an ISO speed rating of 1000, but is designed to give lower than normal contrast when exposed at that ISO speed and developed normally. It's contrast doesn't really build to "normal" unless you increase development.
Ilford's recommendation is that if you underexpose it by 2/3 of a stop (at an EI of 1600) you will get appropriate contrast if you develop it for X minutes at 20C. They have similar recommendations for underexposure by 1 2/3 of a stop (at an EI of 3200) and further additional development.
Many people prefer the resulting contrast if it is developed longer than Ilford's recommendation for the EI used.
In comparison ....
HP5+ has an ISO speed of 400 and is designed to give normal contrast when exposed at that ISO speed and developed normally. So recommendations for under-exposure and over-development are more likely to be made with an eye to minimizing increase in contrast, rather than enhancing it.
Thanks John, however I can't exactly go to picked up a bottle of Sprint today, and since I'm developing this film with my father today I really need to be able to use a developer that is already in the house, that's why I said that I would prefer if I got detailed information from those using DD-X.
I made an error in suggesting that I was at all interested in hearing about other developers at this time, I should've specified that I'm interested in hearing about information of other developers, however as it pertains to this particular day, I only have DD-X to work off of.
its like peeling an onion !
each post in a thread we get yet another detail
that was left out of the original post ..
lol it is a good thing you didn't follow the footsteps of your ancestors
becoming an engineer, you would get partway through the solution to a problem and remember you
you asked the wrong questions of your clients ...
since you can't pick up a bottle of sprint today, you should pick one up tomorrow or another day
and if you can't pick one up locally, they have MAIL ORDER. their developers + fixer &c work with every film and paper on the planet.
simple to use and when the stop bath indicates it is time to mix new everything ( that is the system ) ...
much easier to actually learn something when you have consistency, or at least ONE THING consistent ( the same developer ) ...
I see, so would throwing in some technidol into the DD-X mix help to lower the contrast issue?
I know this probably sounds dumb, but figure I would throw it out there.
I see, so would throwing in some technidol into the DD-X mix help to lower the contrast issue?
I know this probably sounds dumb, but figure I would throw it out there.
Stone, there is no magic bullet we can offer you here. Just grab your Dad and get started, the shots will turn out fine.
I see, so would throwing in some technidol into the DD-X mix help to lower the contrast issue?
I know this probably sounds dumb, but figure I would throw it out there.
Yes, and an 8 oz. can of V-8.
Who knows.
It would be just as likely to leave you with blank film though.
Unless you are mixing developers from constituent chemical parts, and understand the role of each of those parts, I wouldn't suggest "throwing" anything in to anything.
eddie
you are no help
stone is looking for magic in a developer he has had little experience with
he would rather ask for advice, and ignore it, then ask for additional advice, ignore it ..
until he gets the answer/s he is looking for ... much like someone repairing a 1800cc vw bug who needs to
replace the coil, but he only has points and a rotor, so he calls 30 mechanics, and car parts stores until he gets one that says ... take the dist cap off remove the rotor and points and replace them , and dont forget to measure the gap with the feeler gauge ... and then when the car still doesnt start he'll blame the guy that didnt tell him to replace the coil ...
good luck with the snipe hunt !
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