P30 & A Red Filter

Sirius Glass

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Thank you. Interesting results.
 

pentaxuser

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I have just seen this Andy. I may have seen it more quickly if it had been tacked onto the other thread but on the other hand being able to refer to this as a self contained video is probably better and easier

Based on this there is no question that Orto 50 is ortho and that by the test I mentioned which is what you have kindly performed, that P30 is orthopanchromatic. Based on what little difference I saw in the colour red between P30 and Orto 50 in your previous comparison I am still left wondering why this should be. By the same token I am now curious as to what the red filter test would show with Ilford Ortho 80 where the reds in the videos I have seen do not seem to be any darker than P30? Is that really an ortho film or simply ortho-panchromatic that like P30 gets very close to the ortho "borderline "?

It might be as simple as the way that scanning and my vdu work to give a false impression of the rendering of reds in both Ferrania films and Ilford Ortho

Had I been in your shed looking at prints maybe I'd have seen that Orto 50 made reds darker than P30? What I'd have seen with Ilford Ortho remains another unknown

My grandson's football strip is red and blue stripes with the blue being light to a mid blue. If I want to turn this into that of InterMilan, am I better off using P30 or Orto 50 Certainly in Gregg Davis' video the blue in the colour chart came out probably darker than most lightish blues in pancro films Would that blue have been darker. the same or lighter in P30 v Orto 50

Here's the Inter Milan strip: https://www.google.com/search?tbm=s...HkKl3coJEFetBvZroFNTx7d12Qwn7Kw:1696982469761

Based on what you got with Orto 50 and what you know of P30 which of them would turn out a better " Inter Milan "

pentaxuser

PS I hope you don't mind if I open up the Inter Milan question and only the Inter Milan question to others as well

It's just a bit of fun

pentaxuser
 
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Andrew O'Neill

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Orto 50's reds are darker, while P30's blues are lighter. I would probably go with Orto... just for that darker red rendering. I think the P30's rendering of blue is too light, ending up black and white stripes, like an ice hockey ref's sweater I think the blue should be rendered slightly darker than white.
 

pentaxuser

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Thanks, Andy I had another quick look at Gregg Davis' video again on P30 and then his videos on Ilford Ortho and Rollei Ortho 25. It does look to be the case that in our scenario above Ortho 50 is the better bet than P30

Just out of interest I found that in terms of rendering reds as blacks and blues as clearly "not white" the best of the three may be Rollei Ortho 25. It is always very difficult to know from a screen quite what the differences are but relying on Gregg Davis's comments he was able to see enough of a difference in the Rollei blue compared to the Ilford and Ferrania's P30 blue, which he had previously checked, to specifically mention it in the video

Your taking the time and trouble to help on this is much appreciated Your Dad would have said that P30 might have ended up making the grandson's red and blue striped football shirt look like St Mirren's

pentaxuser
 

Sirius Glass

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mshchem said:
Good test!

I'm sticking with TMX and TMY-2
Click to expand...

I will stick with Kodak Plus X, Kodak Tri-X, Ilford FP4+ and Ilford HP5+, thank you.
 
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