Are All CMOS Sensors Equal?
in [Digital Cameras]
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From: Bubba on 18 Apr 2010 09:14 I noticed a very inexpensive Nikon that hasn't even been reviewed yet on dpreview, the Coolpix P100. It has a CMOS sensor and unbelievable digital zoom, but it's gotten mediocre-to-poor reviews from purchasers. On another and not totally unrelated subject, to my shock, I see that several DSLRs don't come with CMOS sensors. Aside from the single lens, I thought *all* DSLRs "had to have" a CMOS sensor. Anyway, I'm still jonesing for the Canon SX1, and will probably stay with it for the swivel screen alone. But the $200 difference in price tag between it and this new Nikon release makes me also ask if there's a difference in CMOS sensor quality.
From: nospam on 18 Apr 2010 11:29 In article <e4dc9e6c-983b-46cb-9799-acb1b6e10043(a)b23g2000yqn.googlegroups.com>, Bubba <digitalrube(a)yahoo.com> wrote: > On another and not totally unrelated subject, to my shock, I see that > several DSLRs don't come with CMOS sensors. Aside from the single > lens, I thought *all* DSLRs "had to have" a CMOS sensor. nope. up until a couple of years ago, nikon, pentax and sony had ccd sensors in their slrs (all made by sony). now most have cmos.
From: Chris Malcolm on 18 Apr 2010 12:45 nospam <nospam(a)nospam.invalid> wrote: > In article > <e4dc9e6c-983b-46cb-9799-acb1b6e10043(a)b23g2000yqn.googlegroups.com>, > Bubba <digitalrube(a)yahoo.com> wrote: >> On another and not totally unrelated subject, to my shock, I see that >> several DSLRs don't come with CMOS sensors. Aside from the single >> lens, I thought *all* DSLRs "had to have" a CMOS sensor. > nope. up until a couple of years ago, nikon, pentax and sony had ccd > sensors in their slrs (all made by sony). now most have cmos. And some still consider that Sony's last DSLR with a CCD sensor, the A350/380, has slightly superior low ISO resolution and colour to their latest CMOS sensor of the same size, as in the A550. The advantage of the CMOS sensor is much better high ISO noise performance. -- Chris Malcolm
From: Bruce on 18 Apr 2010 14:27 On Sun, 18 Apr 2010 06:14:32 -0700 (PDT), Bubba <digitalrube(a)yahoo.com> wrote: > >On another and not totally unrelated subject, to my shock, I see that >several DSLRs don't come with CMOS sensors. Aside from the single >lens, I thought *all* DSLRs "had to have" a CMOS sensor. No, that's not the case at all. Nearly all the early DSLRs had CCD sensors. CMOS sensors tended to be more noisy and therefore needed more effective noise reduction in the camera's firmware. But CMOS sensors and noise reduction have both been improved since then. CMOS sensors can be cheaper to make, and they also make it easy to offer the Live View feature that is now considered almost essential on DSLRs. It's probably a combination of those and other factors that led to CMOS being the most popular choice for DSLR sensors.
From: Bubba on 18 Apr 2010 15:19
On Apr 18, 2:27 pm, Bruce <docnews2...(a)gmail.com> wrote: > On Sun, 18 Apr 2010 06:14:32 -0700 (PDT), Bubba > > <digitalr...(a)yahoo.com> wrote: > > >On another and not totally unrelated subject, to my shock, I see that > >several DSLRs don't come with CMOS sensors. Aside from the single > >lens, I thought *all* DSLRs "had to have" a CMOS sensor. > > No, that's not the case at all. Nearly all the early DSLRs had CCD > sensors. CMOS sensors tended to be more noisy and therefore needed > more effective noise reduction in the camera's firmware. But CMOS > sensors and noise reduction have both been improved since then. > > CMOS sensors can be cheaper to make, and they also make it easy to > offer the Live View feature that is now considered almost essential on > DSLRs. It's probably a combination of those and other factors that > led to CMOS being the most popular choice for DSLR sensors. My response didn't "take." I asked for a general date when CMOS replaced CCD, because in 2006 I bought and returned a huge Digital Rebel 8MP. Also, no one has told me why the Nikon model just released is two hundred dollars cheaper than the Canon. It can't just be because of the much-belowed swivel screen (whose benefit no one will know until they have one). |