Using Tav with fully manual lens

Squier · 07-09-2009, 04:22 PM

Reading up on Tav mode, it seems one sets the aperture / speed and Tav picks the ISO ?

Doesnt Tav mode at least need an A aperture lens, otherwise how does it know which ISO to pick in Tav, if you have to manually set aperture ?

At the moment i've been using AF.s on the switch, and M on the dial , for Snap in Focus with fully manual lenses. I'd like to try this Tav mode, but a bit unsure on the proper way to do this , or which lenses it works with

JonPB · 07-09-2009, 04:52 PM

Correct. With a pre-A lens, you can choose between fully manual and aperture priority. You can see this by putting on the lens and switching through the modes; the information display will show that you are in Av mode even if you use the dial to select TAv.

Squier · 07-09-2009, 05:05 PM

I'll give up the idea of Tav then for the most part. I only have 1 ' A' lens , ( 50mm ) so could try it out, but Tav will be of limited use, it seems.

07-09-2009, 04:22 PM	#1
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 707	Using Tav with fully manual lens Reading up on Tav mode, it seems one sets the aperture / speed and Tav picks the ISO ? Doesnt Tav mode at least need an A aperture lens, otherwise how does it know which ISO to pick in Tav, if you have to manually set aperture ? At the moment i've been using AF.s on the switch, and M on the dial , for Snap in Focus with fully manual lenses. I'd like to try this Tav mode, but a bit unsure on the proper way to do this , or which lenses it works with

Thread Tools	Search this Thread
Show Printable Version E-mail to a Friend	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Catch-in Focus with fully manual lens	JClay	Pentax DSLR Discussion	35	05-04-2011 12:49 PM
fully manual mode on K10D?	DanLoc78	Troubleshooting and Beginner Help	8	09-18-2009 10:09 PM
Sigma APO DG 70-300 Lens on old fully manual vivitar camera	mccarvindh	Troubleshooting and Beginner Help	7	04-04-2009 10:25 AM
confused about fully manual mode	canadave	Photographic Technique	5	05-25-2008 11:10 AM
Grey import lens vs fully imported lens	raider	Pentax SLR Lens Discussion	3	08-15-2007 05:20 AM

07-09-2009, 04:52 PM	#2
JonPB Veteran Member Join Date: Sep 2008 Location: Portland, OR, USA Photos: Gallery \| Albums Posts: 430	Correct. With a pre-A lens, you can choose between fully manual and aperture priority. You can see this by putting on the lens and switching through the modes; the information display will show that you are in Av mode even if you use the dial to select TAv.

07-09-2009, 05:05 PM	#3
Squier Veteran Member Join Date: Apr 2009 Location: Oxfordshire UK Photos: Albums Posts: 707 Original Poster	I'll give up the idea of Tav then for the most part. I only have 1 ' A' lens , ( 50mm ) so could try it out, but Tav will be of limited use, it seems.