readingismagic I ' ve read the Last Pony On Earth and really enjoyed it . I haven ' t read the sequel yet , it ' s on my rather extensive list . Have you read The Coming Stormcomingstorm . It ' s by a different author but set in the same universe . Worth a read if you have not . <| sep |> Even if they were truly invariant they wouldn ' t get rid of iso setting because of jpeg shooting . The idea that you ' d just leave your iso at 100 if you had iso invariance isn ' t the use . The point is expose to the left , make sure you never clip due to too high an iso , and make sure you ' re only accepting as much noise as necessary . <| sep |> I hear a good vigorous shake resets them , like an Etch A Sketch . <| sep |> If his been paying the loan on time maybe refinance into a lower rate ?