PanoTools NG:
Re: Re: D800 + Sigma8
luca vascon 2012-Apr-28 18:32:09
They DO have quality check problems. The better the lens, the more
complicated it is, the worst for QC... See the 12-24 fullframe, reported to
be one of the most incredibly good ultrawides ever. One over 3 is not
perfect. They are not lens to be bought 2nd hand.
;-)
2012/4/27 Roger D Williams <#removed#>
>
>
> From the experience of users in Japan, Sigma has an excellent record in
> admitting poor product performance and prompt replacement within the
> warranty period. If I was disappointed with the performance of a lens that
> others had found "outstanding" I would be back at the ship demanding a
> quality check and either adjustment or replacement. This might be harder
> for purchasers overseas... How would you pay for the to-ing and fro-ing of
> products that proved to be within spec?
>
> That said, they do appear to have a quality control problem. My own 8mm
> f/3.5 Sigma is on a par with the excellent 10.5mm Nikon fisheye.
>
> Roger W.
>
> Sent from my iPad
>
> On Apr 25, 2012, at 5:58 PM, luca vascon <#removed#> wrote:
>
> My 15mm 2.8 is SO good it can be second only to 16mm Zeiss Contax. Many
> others here had quite different experiences...
>
> Il giorno 24 aprile 2012 07:32, Bostjan Burger <#removed#> ha
> scritto:
>
>>
>>
>> At f22 the images would be too soft, especially with lenses like Sigma 8
>> mm. But Sigma is a lottery anyway... I had two 8 mm Sigmas and one was with
>> excellent sharpness when the other was a bit too soft.
>>
>> Bostjan
>>
>> ------------------------------
>> *From:* Erik Krause <#removed#>
>> *To:* #removed#
>> *Sent:* Monday, April 23, 2012 11:39 PM
>> *Subject:* [PanoToolsNG] Re: D800 + Sigma8
>>
>> Am 23.04.2012 19:35, schrieb macbenutzer:
>> > Hi Aldo, yes, right. Taking the image at n22 will help, too:)
>>
>> Probably not. At f/22 diffraction will be large enough to prevent moir?...
>>
>> --
>> Erik Krause
>> http://www.erik-krause.de
>>
>>
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>> --
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>
>
> --
> Luca Vascon.
>
> www.nuovostudio.it
> www.officinepanottiche.com
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--
Luca Vascon.
www.nuovostudio.it
www.officinepanottiche.com