Pentax 67 55mm f/4 latest - floating element?

Silent Street · 08-06-2019, 04:04 PM

The rear element of the 45mm is the floater.

**gofour3** · 08-06-2019, 07:15 PM

Here's the diagram for the 45/4.

Phil.

torashi · 08-08-2019, 06:34 AM

Originally posted by Silent Street

The rear element of the 45mm is the floater.

The rear group usually is. Like on the macro lens I mentioned.

torashi · 08-08-2019, 06:36 AM

Originally posted by gofour3

Here's the diagram for the 45/4.

Phil.

It's a shame the diagrams don't show relative movement of the lenses/groups.

**gofour3** · 08-08-2019, 07:43 AM

Originally posted by torashi

It's a shame the diagrams don't show relative movement of the lenses/groups.

Yep that would be nice to see.

Phil.

08-06-2019, 07:15 PM	#17
gofour3 Site Supporter Join Date: Oct 2008 Location: Vancouver, Canada Posts: 8,092	Here's the diagram for the 45/4. Phil. Attached Images

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08-06-2019, 04:04 PM	#16
Silent Street Veteran Member Join Date: Nov 2011 Location: Castlemaine, Victoria, AUS Photos: Albums Posts: 1,151	The rear element of the 45mm is the floater.

08-08-2019, 06:34 AM	#18
torashi Veteran Member Join Date: Sep 2017 Location: Medellín Posts: 1,322	Originally posted by Silent Street The rear element of the 45mm is the floater. The rear group usually is. Like on the macro lens I mentioned.

08-08-2019, 06:36 AM	#19
torashi Veteran Member Join Date: Sep 2017 Location: Medellín Posts: 1,322	Originally posted by gofour3 Here's the diagram for the 45/4. Phil. It's a shame the diagrams don't show relative movement of the lenses/groups.

08-08-2019, 07:43 AM	#20
gofour3 Site Supporter Join Date: Oct 2008 Location: Vancouver, Canada Posts: 8,092	Originally posted by torashi It's a shame the diagrams don't show relative movement of the lenses/groups. Yep that would be nice to see. Phil.