[LRFlex] Re: Doing it the hard way...

on 5/23/04 9:32 AM, David Young at dnr@xxxxxxxxxxxxx wrote:

> Finally, I ended up using the 14134 extension tubes with the 400mm/f6.8!
> This combination gives about 12 feet working distance! (Camera sat on end
> of our deck, subject lens at the other!) No problem with the equipment
> casting shadows on the subject here. :)
> 
> Because of the focal length, use of f16 and a very slow shutter was needed
> despite the use of ISO400 film and bright sunlight. The R8?s mirror
> pre-fire  and a cable release both proved very handy!
> 
> Throughout the exercise my wife, Rose, and fellow LRFlex member Alex Hurst,
> were rolling on the floor with laughter. But, hey... it did the job! What
> more is there to say?

In the big list's archives there is a thread on the 400mm f/6.8
Macro-Telyt-R :-)  The optical performance is reasonably good thanks to the
simple 2-element achromat design.  I have a couple of the dedicated
extension tubes for these Telyts (14182) which when stacked and combined
with the lens' normal focussing movement gets a reprodution ratio close to
1:2.  No problem casting shadows :-)

Doug Herr
Birdman of Sacramento
http://www.wildlightphoto.com


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