Archived from groups: rec.photo.digital (
More info?)
In article <1oudnWpTFbxZVjPfRVn-pg@rogers.com>,
"Darrell" <spam@this.eh> wrote:
> "Kevin McMurtrie" <mcmurtri@dslextreme.com> wrote in message
> news:mcmurtri-5D2FC8.01002514062005@corp-radius.supernews.com...
> > In article <42ad6ec4$1_2@newsfeed.slurp.net>, "SimonLW" <anon@anon.com>
> > wrote:
> >
> >> "railfan" <arailfan@post.com> wrote in message
> >> news:1118661001.714862.107950@f14g2000cwb.googlegroups.com...
> >> > On a hobby group I follow a fellow recently posted a message that he
> >> > bought a 10MP digital camera on eBay for $150.00! My reply was that I
> >> > had seen 10MP cameras ads in Popular Science or Polular Mechanics
> >> > magazines, by Bell & Howell. The camera is a credit card sized model
> >> > and in the fine print is says something like "10MP is interpolated".
> >> > Of course this means the camera is a lot less than 10MP. But how much
> >> > less? I don't want one, I'm just curious as to how much of a scam
> >> > this is.
> >> >
> >> > Of course I cannot locate the particular B&H ad now, even after
> >> > skimming through the most recent issues of the magazines. But I've
> >> > seen it several times.
> >> >
> >> > Bob Boudreau
> >> > Canada
> >> >
> >> It is probably a 4 MP, but even at 4 MP, the quality is junk. Soft, poor
> >> color, fixed focus and digital zoom only. Stay with the name brands like
> >> Nikon, Canon, Fuji, Pentax, Olympus and others for a good camera.
> >> John
> >
> > Er... Fuji is no stranger to upsampling scams.
>
> Fuji normally pixel doubles combined with an algorithm that works. As well
> as a good lens.
No algorithm can produce an optical resolution that's double the
physical sampling resolution. It's still an upsampling scam. Even
their attempt to merge two similar frames, which could technically
increase the resolution, was found to not be effective.
The only thing that kept Fuji alive was that many other cameras with
comparable physical resolutions had less effective imaging algorithms
and damaging radial blur. Some early 4MP cameras had no better
resolving power than high-end 2 and 3 MP cameras.
> The Bell & Howell et al are toy cameras with rather poor
> lenses, they upsample a webcam quality308 K image (640x480) to produce a 10
> megapixel file.
>
> Look at the Bell & Howell specs 16 MB onboard memory, stores 141 pictures...
Of course it's a toy. No argument there.