Test of Mamiya 135 EE purchased on EB at low price

Adox Silvermax 100 exposed from left to right at 100, 80, 64 and 50 iso. The Cds meter seems to have suffer a bit... Strangely the picture is sharper at lower iso whereas focusing was the same on infinite : any suggestion ?

攝影師：
oliv0380
上載：
2018-09-13
標籤：
bw home developed rodinal test
相機：
Mamiya 135 ee
菲林：
Adox Silvermax 100
鏡頭：
Mamiya Sekor 38mm f 1:2.8
城市：
Dijon
國家／地區：
France

2 個留言

  1. antmark
    antmark ·

    Just one possible reason, but if the aperture with the higher ISOs is small enough it might cause difraction which in turn leads into less sharp image.

  2. oliv0380
    oliv0380 ·

    @antmark Thanks for the opinion. Finally I think Silvermax can be stretched easily : it doesn't suffer at iso 50 even if supposed to be pull-processed in Spur or reversed at 160. Maybe also that sunny day (f16 rule) forced the Mamiya to select f8 at 100 iso and f14 at 50 iso, giving a wider DOF...
    Photography needs to be thought about !!!

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