Description

SOLD / WANTED

Leica 400/560/800 Apo- Telyt-R R Lens Cat #11842  sold with Leica hood,Leica caps and lens case  & with :

Leica FOCUS MODULE 1:2.8/280/400mm ROM #11843 1.0 X Ex++

Light marks by hood Edge otw clean working special lens.

Leica’s modular tele-photo lenses provide very high mechanical and optical quality in the best of the brand’s tradition. The lenses are sharp and virtually free of vignetting. Also, the apo-chromatic correction results in the near absence of color fringing and excellent contrast. Some quantitative performance measurements carried out by Leica technicians are summarized in:

 Erwin Puts’ description of the APO-Telyt-R modular system (pdf download).

The Apo-Telyt-R Module Sytem 1996 / Erwin puts

The module sytem was specifically designed photographer who needed several long lenses for his assignments,When one is concidering focal lengths around and above 280mm, there is a likelihood that flexibiltiy and ease of lens change are of importance. The system consists of three focus modules,with enlargement factors of 1,1,4 and 2, and two lens heads which can be combined to get six different sytems.

The several units are very sturdily built,and can be focused very smoothly with an internal focusing mechanism. Being primarily designed as a system,its advantages are found where a  system of lenses is needed. There are many smart design elements, like close distance focus,short overall length,rotatable tripod thread,carrying handle,fine thread focusing.

Optically the lenses perform as a family and can described as a group,noting difference when needed.

From module 4/400 overall contrast is very high at full aperture and performance is even over the whole image area. Fine detail is very crisply rendered with a trace of color fringing at the edges in the field. Stopping down improves overallandmicro contrast and the rendition of extremely fine detail is outstanding. Again a faint trace of chromatic aberrations in the outer zones maybe detectable as a slight blurring at the outlines of the minute details.  The 2.8/280 and 2.8/400 exhibit a high contrast at their maximum aperture, again over the whole image area.  Extremely fine detail is recorded with very good fidelity with the 280 version.  The 400 version has a somewhat softer look, but you should see this in perspective. Its image quality is equal to that of the previous Apo-Telyt-R 2.8/400, but it does notreach the level of the non-modular Apo-Telyt-R 4/280. Stopped down to middle apertures the capture of extremely fine detail is beyond the capabilities of most film expulsions. Some residual chromatic aberrrations are detectable in the field.

It is evident that the performance of these lenses ccan only be exploited with a photographic technique of a very high order.  The slightest vibration and defocusing will degrade the inherent quality  These lenses are capable, optically and mechanically, of delivering a very high level of imagery.  The module system is truly a challenge for thephotographer and the material. The quality i the results justifies the efforts!!!