Re: [Leica] Talk to me about 50 Summicron vs. 50 Summilux

["Steve LeHuray" <icommag@toad.net>]

I use a screw-on hood on my current model 50mm Summicron (instead of the
sliding hood) and it gives the front lens element a 1/4 inch of additional
protection. I am not real technically minded but from my cine experience you
want to keep the key light (Sun or whatever) as much as possible from coming
anywhere near the front of the lens. On my 16mm Eclair NPR I have a huge
matte box (called a studio rig, which has more hardware on it than I want to
think about) and in addition will use a french flag which I can position
towards the key light (daylight or tungsten). And I can always see the
difference when I screen film with and without the studio rig. So when I
shoot stills I like using big lens hoods. Modern cine lenses have incredible
sharpness and resolution but still suffer from flare. There is alot of dust
in the air and light will reflect off that. Hope that partial explanation
helps a bit.
Steve
Annapolis
- ----------
>From: "Richard J. Wyble" <rwyble@erols.com>
>To: leica-users@mejac.palo-alto.ca.us
>Subject: Re: [Leica] Talk to me about 50 Summicron vs. 50 Summilux
>Date: Mon, Jul 12, 1999, 11:09 AM
>

>Thank you for the observation, Lucien.
>
>Firstly, please understand that my questioning is genuinely seeking
>informed information, not questioning the experience and wisdom of
>anyone other than to learn from it.
>
>That said, I am curious about why the sliding hoods might be regarded as
>being less efficient. As point of reference I do use a current 50mm
>Summicron with the sliding hood. It seems to me (preparing perhaps to
>display my ignorance) that the efficiency of a lens hood is a function
>of how well it shades extraneous light from reaching the front lens
>surface. A clip-on hood is of larger diameter; a sliding hood is of
>smaller diameter; does it not follow that the smaller diameter hood can
>provide equal (or superior) shading than the larger diameter clip-on
>model, even while *appearing* to be so much smaller and less efficient?
>
>What of image quality of the 50mm Summilux (not the current version, but
>one of the older design .. with clip-on lens hood. <grin>) vs. the 50mm
>Summicron?
>
>Excerpts from leica: 12-Jul-99 Re: [Leica] Talk to me abou..
>Lucien@ubi.edu (396*)
>
>> Bryan Caldwell wrote:
>> > 
>> > Richard,
>> > 
>> > Besides the obvious one stop difference, you will lose close focusing
>> > distance with the Summilux. The Summicron focus to .7m and the Summilux to
>> > 1m. This can be a big difference to some people, but to others it doesn't
>> > matter.
>
>> The new version of the 50/1,4 Summilux focus to 0,70 m.
>> But it come with the less efficient sliding lens hood.
>
>> Lucien
>
>
>
>  rwyble@erols.com
>  Richard J. Wyble
>