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Re: [MW:29891] what is the difference between d4 and d7 film

By Materials & Welding
Dear Mr.  Vinod,
It's depends on manufacturing brand, generally on corners they mentioned or marked for D4 or D7 identification.

Muhammad Babur Khan
Sent from my iPhone

On 25 Jul 2019, at 11:33 AM, VINOD <surya8031@gmail.com> wrote:

after develop the film how to know

On Friday, February 9, 2018 at 4:50:33 PM UTC+5:30, gerr...@yahoo.com wrote:
D4 Films are Extra Fine grain Film with Very High Contrast associated with High Cost and more exposure Time.


D7 Films are Fine grain Film with High Contrast and High Speed.

Thanks & Regards

J.Gerald Jayakumar

0091-9344954677



On Friday, February 9, 2018, 2:33:47 PM GMT+4, <baskar...@gmail.com> wrote:


Dear Expects 

how to classify the d4 and d7 film , tell the difference between two films.

Thanks and Regards
Baskar P
+91 9944876002

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