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| sent on November 17, 2023 (7:26) | This comment has been translated
Great shot, congratulations! |
| sent on November 17, 2023 (11:55)
Thank you both for your kind words Nikp and Davcam! Best regards |
| sent on January 06, 2024 (12:44) | This comment has been automatically translated (show/hide original)
Beautiful shot.
Stunning image quality.
Congratulations, but... I need to get rid of a doubt, since I would like to buy my first Sony camera... (I own 3 professional Nikons).
I would like to take the A6700 which is an APSC (multiplication factor for full frame lenses equal to 1.5), and I was wondering if the aperture, in addition to the focal length, should also be multiplied by 1.5?
That is, the exif data of the shot says f/6.3 at 600mm, but really it would be an f/9.45 at 900mm ???
Or am I wrong in my calculation?
Thank you for your time.
Hello Bellissimo scatto.
Qualità dell'immagine strepitosa.
Complimenti, ma... ho bisogno di togliermi un dubbio, visto che vorrei acquistare la mia prima fotocamera Sony... (possiedo 3 Nikon professionali).
Vorrei prendere proprio la A6700 che però è un APSC (fattore di moltiplicazione per le lenti full frame uguale a 1,5), e mi chiedevo se anche l'apertura del diaframma, oltre che alla lunghezza focale, debba essere moltiplicata per 1,5?
Cioè, i dati exif dello scatto dicono f/6.3 a 600mm, ma realmente sarebbe un f/9.45 a 900mm ???
Oppure sbaglio nella considerazione?
Grazie per il tempo che vorrai dedicarmi.
Ciao |
| sent on January 25, 2024 (20:00)
@Calisto69, thank you for your nice comment and sorry for the late reply.
To answer your question: The one property which is subject to the 1.5x multiplication factor is the Depth Of Field (and the Bokeh). In effect, if the same subject would have been photographed with an FF sensor the depth of field would change: to get the exact same (APS-c) depth of field from the FF sensor the aperture should be multiplied with 1.5x, thats where the multiplication comes into play. The aperture will not increase or decrease in terms of light, the f/6.3 lens will project the exact same amount of light on an APS-c sensor as it would on an full frame sensor but the FF sensor will gather more light in total since its surface is simply bigger. |
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