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Forum: Pentax DSLR Discussion 06-22-2018, 12:19 PM  
Extension Tubes
Posted By BrianR
Replies: 18
Views: 8,325
Unless you're always planning to shoot wide open (or stopped down all the way) a bellows would especially suck on the aperture ringless dfa100mm WR. You could probably work out a way to manually stop down the aperture to what you want, but ehh, if a bellows is part of the plan you'd be better off picking up a wider focal length lens with an aperture ring.



The DCR-250 pairs wonderfully with the dfa100mm, it gives you 0.8x to 2x magnification depending on what focusing distance the lens is set to. Far more useful than bellows or tubes on a 100mm macro (in my opinion). Example:



American Lady by Brian Robin, on Flickr

Also see Pascal's photostream (forum member Doundounba), which has many fabulous examples using the dfa100mm and a raynox, sometimes with the 1.4x HD TC: https://www.flickr.com/photos/doundounba/
Forum: Pentax Medium Format 09-23-2014, 06:32 AM  
Post your medium format photos!
Posted By Thomasbrowphoto
Replies: 20,463
Views: 3,167,619
A 28 Frame Panorama with the 645Z +DA25mm.
Port Macquarie , NSW Australia

Tom.
Forum: Troubleshooting and Beginner Help 10-14-2011, 07:55 AM  
K-7 and setting ISO range
Posted By Adam
Replies: 4
Views: 1,369
First you have to enable the expanded iso range custom function, and then make sure shadow/highlight correction is off (expanded dynamic range).
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