<p>Thanks a lot for the response. I loaded it in Pentax MX at ISO 100 at your suggestion.<br>
<br /> I am not knowledgeable about films but I found this: http://www.photo.net/black-and-white-photo-film-processing-forum/00VLAf<br>
<br /> May I know, what ISO stops in between 32, 64, 100, 200, 400, 800 and 1600 indicate?</p>
<p> </p><div></div>