[Leica] Unexpected camera limitation

[Herbert Kanner]

I just checked the specs of my X100S, which has a 23.6 x 15.6 mm sensor and a focal length of 23 mm. It has an  f/2 lens which stops down to f/16.

Unfortunately, it is now out of my hands for warrantee repair.

Herbert Kanner
kanner at acm.org
650-326-8204

Question authority and the authorities will question you.




On Oct 10, 2014, at 9:52 PM, Frank Dernie <Frank.Dernie at btinternet.com> wrote:

> The depth of field and onset of diffraction limit for sharpness is completely different in small sensor cameras than those of 35mm. Very few, if any, of these small sensor cameras stop down less than f8 since the loss of sharpness due to diffraction is significant and the increase in DoF unnecessary.
> They didn't think of the type of thing you were trying to do, I suppose, or making such a small aperture accurate (f16 on a 5mm fl lens is 0.012") is not economically feasible.
> 
> Frank D.
> 
> On 10 Oct, 2014, at 23:34, Herbert Kanner <kanner at acm.org> wrote:
> 
>> I just ran into a totally unexpected limitation of my Panasonic DMC-LX5, A camera which retailed new for $400, or with Leica brand, cosmetics, and firmware, $800. I was trying to photograph a small decorative waterfall, set the shutter to 1/15 to fuzz up the water, and picked the lowest ISO available: ISO 80. Then I discovered that the camera simply would not stop down below f/8, giving an impossible over exposure. Would I have bought the camera had I known this—I wonder. 
>> 
>> I did get it at half the new price, so I suppose it’s better than anything I could get new for $200.
>> 
>> Herbert Kanner
>> kanner at acm.org
>> 650-326-8204
>> 
>> Question authority and the authorities will question you.
>> 
>> 
>> 
>> 
>> 
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> 
> 
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