120 Format Agfa APX100 in Rodinal 1+50 - Processing Time per Massive Dev Chart Difference?

I'm looking at the Massive Dev Chart and noticed that the processing

time for APX100 (new) in Rodinal 1+50 is NOT avaialbe.

 

What's the difference between APX 100 and APX 100(new)? I bought my

120 format APX100 about half a year ago. Are they the original or

the "new"?

 

What's the recommended processing time at 68F? Thanks.

There is NO APX-100-New.

<p>I do development in a small tank, 13', 30 secs initial agitation, 5 inversions every minute, 68?F. Negatives print ok in grade 2 diffusor enlarger, Rodinal 1+50.

Examples:

<p><a href=http://www.photo.net/photodb/photo?topic_id=1481&msg_id=00DAyL&photo_id=3622234&photo_sel_index=0>Waiting</a>

<p><a href=http://www.photo.net/bboard/uploaded-file?bboard_upload_id=25071384>Harley</a>

 

<p>Those were printed in grade 3, losing some detail in the shadows, because i liked the overall darker tone.

APX 100 rated at 50 ASA, Rodinal 1:50, 20 C, 10 minutes. Four inversions in the first 30 seconds then one inverson every 30 seconds after that. That's for a diffuser head enlarger.

I just developed 16 rolls shot at EI 80 for 8.5 minutes in Rodinal 1+50. My

water temp was closer to 71 degrees F. That's as cold as I could get it coming

from the tap durung August in the Midwest! Negs look good. I'll be printing

with a diffuser head enlarger. If you're printing with a condenser head or

scanning I'd give it about 15-20% less time.

i pretty much do it according to the box.

 

68F, 1:50, 17 minutes. out of curiosity, where is this 13 minute figure coming from?