Question about the Sony RX100 with a different lens.

Started Jun 11, 2012 | Discussions thread
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Re: Question about the Sony RX100 with a different lens.
In reply to Great Bustard, Jun 12, 2012

Great Bustard wrote:

The RX100 looks really small. How big would it be if, instead of a 10.4 - 37.1mm f/1.8 - 4.9, it had an 8.9 - 31.5mm f/1.8 - 2.8?

I mean, that's 1.6 stops faster on the long end (significant, although the long end is 15% shorter). For sure it would be larger, but would it be so much larger as to make it impractical?

You'd need a lot more glass to get that extra 1.6 stops on the long end. That would jump up the cost a lot as well. The diameter of the lens would need to be much bigger and it might be difficult to make it retractable into such a small body. Although you've suggested a 15% shorter lens you've subtracted about 15% on the wide end as well where it probably makes a more significant difference to the difficulty of the lens design.

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