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Flare: 90mm f/2.5 Leica Summarit-M
The Leica 90mm f/2.5 Summarit-M is not a good choise for contre-jour imaging situations, and it is subject to substatial veiling flare should direct light strike the front element.
Grazing sunlight
I did not go looking for this flare example; it found itself, and hounded me; I could not make a clean shot here. Most telephoto lenses have this flare issue, and the 90/2.5 is no exception.
I expect that the 90/2 APO-Summicron-M ASPH would also be affected in a similar manner. However, since the 90/2.5 does not have a built-in lens hood, such flare issues are likely to be less troublesome with the 90/2 APO-Summicron-M ASPH, which does have a (small) built-in lens shade. Such conveniences are not to be underestimated in the field; having a hood built-in keeps the form factor and hassle factor down.
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Diglloyd Guide to LEICA contains in-depth coverage of Leica M system cameras and lenses, with additional coverage of Leica M Monochrom, Leica Q.
Special emphasis is placed on Leica M lenses and certain Zeiss ZM lenses.
- Make better images by learning how to get the best results right away.
- Save money by choosing the right lens for your needs the first time, particularly the Summilux/Summicron/Elmarit choice and/or Zeiss ZM.
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- Real world examples with insights found nowhere else. Make sharper images just by understanding lens behavior you won’t read about elsewhere.
- Aperture series from wide open through stopped down, showing the full range of lens performance and bokeh.
- Optical quality analysis of field curvature, focus shift, sharpness, flare, distortion, and performance in the field.
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Leica M9P + 90/2.5 Summarit-M