[Leica] IMG: stacked extenders!

[John McMaster]

Ah yes, that extra 0.07 has an effect with big numbers ;-)

john

-----Original Message-----

Actually it's a FF EQ of 1074 mm. The DMR has a 1.37 crop factor for the sensor inside the film rails. I've tried this setup once of twice, but you need a lot of light and a very steady tripod/head. It's also quite dark on the VF too.

Great shot, Doug, as that's really hard on that set-up.

Best wishes,

Charlie
www.charlie-chan.co.uk

On 14 Dec 2014, at 18:17, John McMaster <john at mcmaster.co.nz> wrote:

> 280 * (1.4 * 2 *1.3 (APC-H)) = 1019mm
> 
> john
> 
> -----Original Message-----
> From: LUG [mailto:lug-bounces+john=mcmaster.co.nz at leica-users.org] On 
> Behalf Of Mark Rabiner
> Sent: Monday, 15 December 2014 6:49 a.m.
> To: Leica Users Group
> Subject: Re: [Leica] IMG: stacked extenders!
> 
> So is that 280 * 3.25  = 910mm's ?
> 
> 
> On 12/13/14 7:39 PM, "Doug Herr" <wildlightphoto at earthlink.net> wrote:
> 
>> Had to try it: 280mm f/4 APO + 1.4x APO-Extender-R + 2x 
>> APO-Extender-R on the R8/DMR (on a big Gitzo braced against a 6" x 
>> 12" post)
>> 
>> http://www.wildlightphoto.com/birds/picidae/melanerpes/lewood04.html
>> 
>> Doug Herr
>> Birdman of Sacramento
>> http://www.wildlightphoto.com
>> 
>>