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Andrew Gough

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  1. I love the fake video's!
  2. Any word on the 24mm SL APO Summicron? The 35mm was announced in Feb/2019 and the 28mm in Feb 2021. Could we see a 24mm next month?
  3. Merry Christmas Everyone! M240 & 24mm Summilux
  4. Anecdotal: From the SL2 Brochure "While cutting-edge new features such as in-body image stabilization unlocks newfound potential from legendary Leica M-Lenses, it simultaneously augments the growing selection of SL-Lenses which are some of the finest optics Leica has ever produced." https://leica-camera.com/sites/default/files/pm-54744-191101_SL2_catalog_en_lowres.pdf
  5. "The sensor also plays a key role in terms of the com- patibility of the Leica SL-System. For instance, it is optimized for use with Leica M-Lenses and, in addition to supporting all functions, delivers a picture quality that can be achieved only by Leica cameras." https://www.leicauae.com/wp-content/uploads/2016/12/160901_SL_Broshure_en_2016_low-1.pdf
  6. In a way, you are both correct. However, Stuart is also correct. The depth of field is much smaller as you approach the minimum focusing distance of a lens. Let's take a 28mm F/2.0 at 1 meter, it will have a depth of field of 0.15 meter. The same lens focused at 10 meters will have a depth of field of 36.55 meters. Hyperfocal distance is not necessarily on the sharpest point of focus, since it looks to place the far depth of field focus limit closer to infinity. I think that Stuart was simply stating that is seems much more logical to use an AF lens on an AF camera. The attraction of the SL lenses is that they have very flat planes of focus by design. This helps them achieve the look of a faster lens in the OOF region. Looking at the MTF's for the SL 28mm summicron, and M lenses none of the M lenses are remotely close to the same flat plane of focus vs the SL lens. Even the newer 28mm Summicron exhibits greater field curvature. Sometimes, these qualities may be desirable, depending upon the planned use - landscape for example. But the flatness of the SL lenses, and the faster transition to the out of focus region does make the use of AF more accurate desirable when using the lens wide open.
  7. I agree 100%. I will try the Sigma f3.5 and F2, thank you for the info!
  8. So we know that the Sensor in the SL2s is a Sony which can be had with phase detect AF points. Leica and Panasonic have enough money to devolop contrast detect AF, but not phase detect AF? I seriously doubt this...
  9. I have tested the Pana 24mm and it was very good in the centre, with a definite fall off in sharpness towards the outer edges. It remains less sharp on the edges through the aperture range. That said, for its price it is an exceptionally good lens. It does not match the Leica SL lenses in any way. Interestingly, it is almost exactly as the oft predicted. Lastly, it has no focus breathing. I will test the Sigma's next. The 20mm is one that I am looking forward to.
  10. I have owned it, and its a very good lens. But we are talking about AF lenses that Leica has already announced. Manual focus is too slow. for many applications. Sports, fluid people shots, weddings, and I could go on. M lenses are optically very good, but they are designed for a slower more methodical type of shooting. I also have many of these lenses for precisely these times. I get it, but not every one shoots 24mm at F8 doing landscape work. Some of us like to use these lenses wide open in fast moving dynamic situations. AF is one of the primary reasons people buy the SL series over the M. To say that they don't want or need AF, in any already announced system lens, is really just making excuses for Leica.
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