Archived posting to the Leica Users Group, 2008/03/28

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Subject: [Leica] CV 15mm lens on M8
From: grduprey at mchsi.com (grduprey@mchsi.com)
Date: Fri Mar 28 16:24:07 2008

I wear contact lenses and can see the 24 and around it just fine.  ;-)  On 
the other hand i need glasses to read or review the lcd on the M8 when I use 
my contacts.  Growing old is a real bitch.  ;-)

Gene

-------------- Original message ----------------------
From: FRANK DERNIE <frank.dernie@btinternet.com>
>
> Wow! on my M8 with my eye pushed up against the viewfinder in my smallest 
> spectacles I can -just- see the 24mm framelines and nothing around, it 
> actually 
> makes even using the 24 lens a bit uncomfortable for me using the standard 
> viewfinder for composition.
> Frank
> 
> 
> ----- Original Message ----
> From: "grduprey@mchsi.com" <grduprey@mchsi.com>
> To: Leica Users Group <lug@leica-users.org>
> Sent: Friday, 28 March, 2008 12:22:04 AM
> Subject: RE: [Leica] CV 15mm lens on M8
> 
> Geoff,
> 
> The 24 frame is the largest, however, the area around the 24 mm frame is 
> the 
> approximate view from a 21 mm lens.  I verified this a year ago at the M8 
> seminar in Chicago.  So if you want to use a 21mm lens on the M8, as long 
> as you 
> can see the entire viewfinder window, you do not need an external VF on 
> the M8.  
> This would give you the view of a 28mm lens on a 35 mm film M.
> 
> Gene
> 
> -------------- Original message ----------------------
> From: "Geoff Hopkinson" <hoppyman@bigpond.net.au>
> >
> > Steve, your 24mm lens virtually fills the M8 viewfinder. That is the 
> > widest
> > frameline built-in. I don't know how you can see anything outside that
> > frameline. Due to the (smaller than 24x36) sensor crop, that frameline 
> > shows
> > you an approximation of the crop effect (about the same view angle as a 
> > 32mm
> > on a film M)
> > To use a 15mm lens you should use an external finder which is designed 
> > for a
> > 21mm lens on a film M.
> > All of the framelines show less than the actual sensor capture anyway. 
> > (they
> > are calibrated for the view at .7m) 
> > The key is to think of the framelines as approximating the view angle, 
> > not
> > the nominal focal length. Each lens produces the same image at the plane 
> > of
> > focus on any M. The M8 sensor, being smaller than 24x36, actually 
> > captures
> > about 75% of it.
> > 
> > Cheers
> > Geoff
> > http://www.pbase.com/hoppyman/e
> > http://gallery.leica-users.org/v/gh/
> > -----Original Message-----
> > From: lug-bounces+hoppyman=bigpond.net.au@leica-users.org
> > [mailto:lug-bounces+hoppyman=bigpond.net.au@leica-users.org] On Behalf Of
> > Steve Barbour
> > Sent: Friday, 28 March 2008 02:06
> > To: Leica Users Group
> > Subject: [Leica] CV 15mm lens on M8
> > 
> > a question here , as my logic becomes  befuddled...
> > 
> > 
> > A 21mm lens on the M8 just about fills the M8 viewfinder...
> > 
> > a CV heliar 15mm lens on the M8 is really a 21mm lens, and can be used  
> > with a 21mm external viewfinder...
> > 
> > so... can one also use the M8 viewfinder, as the viewfinder for a CV  
> > 15mm lens...?
> > 
> > 
> > Why is this so difficult?
> > 
> > (a yes or no answer is inadequate, without some logical explanation...  
> > please)
> > 
> > 
> > thanks, Steve
> > 
> > 
> > 
> > 
> > 
> > "I never wanted to be famous"
> > http://www.blurb.com/bookstore/detail/186890
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> > 
> > 
> > 
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
> 
> 
> 
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> 
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