Widest aperture Leica APO-VARIO-ELMARIT-SL 90-280mm / at 200mm?

[olzen911]

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Hallo Zusammen,

leider habe ich auch nach langer Suche keine Übersicht der var. Offenblende des Objektivs gefunden. Mich würde beispielsweise interessieren bis zu welcher Brennweite 2.8 erhalten bleibt und welche Offenblende bei 200mm anliegt. Ideal wäre eine kleine Tabelle oder ein Hinweis, wenn ich einfach linear interpolieren kann 🙂

Besten Dank!

 

Hi all,

unfortunately, even after a long research, I was not successfull finding an overview of the var. open aperture of the lens. I would like to know up to what focal length 2.8 as max is possible, plus what is open aperture at 200mm. Ideally would be a small table or a hint if I can simply interpolate 🙂

Many thanks!
 

Edited December 27, 2022 by olzen911

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[olzen911]

... und wenn jmd. noch etwas zur Freistellungsleistung sagen kann - verhält sich das Objektiv ähnlich wie die Festbrennweiten SL APOs ("2.0 sieht aus wie 1.4 bei anderen Objektiven") ...

... and if someone can  say something about the "3D pop" / bokeh  - does the lens behave similar to the fixed focal SL APOs ("2.0 looks like 1.4 on other lenses") ...

Edited December 27, 2022 by olzen911

[Jeff S]

f/2.8 at 90mm

Approximately  f/3.1 at 120mm

Approximately f/3.3 at 160mm

Approximately f/3.5 at 200mm; f/3.6 at 210mm

f4.0 at 280mm

Longer focal length lenses can often show better background separation and blur than opening up shorter FL lenses. This is one reason that some use 90mm or so for portraits, even if not wide open, rather than shorter FLs.  Of course distance between camera, subject and background matter, along with lighting, subject matter, etc.  

Jeff

Edited December 27, 2022 by Jeff S

[olzen911]

Thanks Jeff, so then interpolation seems to be pretty accurate:

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... so half aperture step smaller at 200 (compared to constant 2.8 70-200s)...