[LRflex] Big lens on an R9
- From: Jonathan Lee <jlee@xxxxxxxxxx>
- To: leicareflex@xxxxxxxxxxxxx
- Date: Wed, 11 Oct 2006 12:24:15 -0400
I spent a week this summer whale watching from the shore in Tadoussac.
We saw a lot of whales (minke, beluga and humpback) and many of the
minke came within about 100-200 meters of the shore. However, my 250/4
Telyt R9/DMR combo is simply too short to get any sort of detail on the
whale. I think a 500mm would be good focal length for that.
I don't have a 500mm photo lens but I do have a 500mm telescope
(Takahashi Sky90. f=5.6). This is a doublet but it is APO corrected.
This "lens" weighs about 7 lbs and focuses by turning a knob (just like
working a bellows). I can mechanically adapt the R9 to the telescope,
but before I go ordering adpaters, I would like some advice on whether
my thoughts are feasible/practical. I have two areas of concern:
weight and needing one hand to turn the wheel focuser.
Weight. With 7lbs of lens and 3lbs of camera, I think I need a
monopod. Is it possible to carry 10lbs on a shoulder stock ? I guess I
could use my existing telescope mount (Takahashi Teegul) but it means
lugging more stuff around.
Focusing. Is knob focusing even practical for wildlife? If I go with a
monopod, I will use my left hand to grip the monopod and my right to
focus. I will need a cable release mounted on the monopod to trigger
the R9. Is there a monopod with an integrated grip and a cable release
mounted in the grip?
Alternatively I could just buy another Leica lens.
Thanks
Jonathan
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