I will pass along all the comments to the appropriate people within ILFORD. However, from what I have heard, the Delta 200 is not noticably better than the new version of the Delta 400 in regards to grain, so I think that is why there are no current plans to produce the film. Perhaps your input will cause enough interest to conduct further trials.(posted 8474 days ago)As for very slow films (like a Panatomic X or APX25 replacment) ILFORD currently produces Pan F, which at an ISO of 50 is the slowest film widely distributed. It would be very difficult to justify making an additional film that was even slower, as this would probably lead to very few new customers, and mainly cannabilize the Pan F sales.
David Carper ILFORD Technical Service