Image Oliver Richter | Leica R-Lenses guide

Chapter 7

Leica R-Lenses	9

This is a lens with amazing characteristics. It offers outstan- ding quality and can be compared very favourably to the fixed focal lengths. A detailed comparison with the equiva- lent fixed focal lengths is possible based on the published graphs in earlier chapters and in the lens data sheets, avai- lable separately. The reader can do this him/herself.

The comparison with the Apo-Summicron-R 90 mm f/2 ASPH is interesting and does indicate where the advantages of fixed focal lengths may be found. A careful study of the properties of the individual lenses does help making the correct selection. The Apo-Summicron-R delivers at full aperture (1:2) the same performance as the Vario-Elmarit-R at the 90 mm focal length at f/4.5.

The Apo lens has a two stop advantage here. The greater depth of field and the more effective reduction of internal reflections (smaller lens diameters!) give the pictures with the Vario lens a smoother quality. With the Apo lens the sharpness plane is clearly isolated from the rest of the image and the unsharpess gradient is steeper. Stopping down the Apo-Summicron-R to 1:4 will make the differen- ces disappear of course.

In general the fixed focal lengths will be more compact and offer a higher speed per focal length. Stopped down there is no longer a big difference and compared to older lens generations, the zoomlens often has better imagery in the outer zones of the image.

The images made with the LEICA VARIO-ELMARIT-R 28-90

MMF/2.8-4.5 ASPH have a very good colour fidelity, a very fine pictorial depth and realism. This is a lens for slide film

and if you have not yet tried slide film, the acquisition of this lens might be a good incentive to try these films.

The wide zoomrange from 28 to 90 mm highlights another property of the reflex system: the normal finder screen of the R8/9 is a bit too dark at the 90 mm position and it is difficult to focus accurately at the 28 mm position. Here lies a new job for the engineers at Solms! Focussing at the wide angle range is often not very critical as depth of field will cover slight errors. If accurate focus is required, it is best to focus at 70 mm and zoom to 28 mm (or 90 mm and zoom to 35 mm).

In this range, focus constancy is abolutely spot on. Current Leica lenses score high marks in the areas of contrast and definition and reproduction of very fine detail. These cha- racteristics can be inferred from the published MTF graphs, as long as you try not to read too much out of these graphs. One very critical area where the MTF can not provi- de information is the propensity to flare in its several aspects.

LEICA VARIO-ELMARIT-R 28-90 MM F/2.8-4.5 ASPH	image: Oliver Richter

R-Lenses specifications

Leica R-Lenses have long been revered by photographers for their exceptional quality and performance. Designed for use with Leica R-series film and digital cameras, these lenses embody the brand's commitment to optical excellence, precision engineering, and user-friendly functionality.

One of the most notable features of Leica R-Lenses is their superb optical design. Each lens is crafted using high-quality glass, often featuring special elements such as aspherical glass and low-dispersion lenses to minimize aberrations and enhance sharpness. This meticulous attention to optical performance ensures that images captured with R-Lenses exhibit remarkable contrast, clarity, and color fidelity, allowing photographers to achieve stunning results.

Another key characteristic of Leica R-Lenses is their robust build quality. These lenses are constructed with durable metal housings, ensuring they can withstand the rigors of professional use. The precision of the manufacturing process results in smooth focus and aperture adjustments, providing photographers with a tactile and reliable shooting experience. The use of weather-sealing in certain models allows for shooting in challenging conditions, further enhancing their versatility.

Leica R-Lenses also feature a distinctive aesthetic, characterized by their sleek design and distinctive red dot logo. This iconic branding signifies a level of craftsmanship and quality that is synonymous with the Leica name. The manual focus mechanism on R-Lenses is particularly praised by many photographers, as it allows for fine-tuned control over the focal point, which is especially useful in portrait and macro photography.

In addition to their optical and mechanical excellence, many Leica R-Lenses come equipped with advanced technologies. For instance, some models include the ROM (Read-Out Memory) contacts, which enable the camera to communicate with the lens for enhanced functionality, including automatic aperture control and accurate exposure readings. This integration of technology with traditional craftsmanship exemplifies Leica’s approach to modern photography.

Ultimately, Leica R-Lenses offer an unparalleled combination of optical brilliance, robust construction, and user-friendly features. With a range of focal lengths and specializations, from wide-angle to telephoto, photographers can find the perfect lens to suit their creative vision. Whether one is capturing landscapes, portraits, or close-up details, Leica R-Lenses provide the quality and precision expected from one of the world’s leading camera manufacturers.

Chapter 7

image: Oliver Richter

R-Lenses specifications