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Old 21-06-2013, 06:54 AM
George Ionas
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George Ionas is offline
 
Join Date: Apr 2010
Location: New Zealand
Posts: 233
Greg, Maybe you mean the Pentax 6x7 55mm f/3.5. I use the Pentax 67 55mm f/4 and it is exceptionally good.

I have attached a few examples.

George
Attached Thumbnails
Click for full-size image (20130305 PX 55 f4 QHY9 Ha 6x1200s LMC Comp.jpg)
202.1 KB29 views
Click for full-size image (20130217 PX F4 Q9 Ha NGC3372 3x900s_stitch Final Comp.jpg)
181.4 KB27 views
Click for full-size image (20130307 PX 55 F4 QHY9 Ha 3x1200s Gum Nebula Comp.jpg)
206.5 KB25 views
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