Portofino Resort- Now with a new BEACH BAR!!
Topic Options
#360676 - 12/08/09 06:53 PM Picture IQ, Mega-Pixels and Noise
Peter Jones Offline
Can anyone explain to me how the size and number of pixels on a given sensor size affects picture quality and in particular digital noise?

It seems to be received wisdom now that having fewer pixels on the same area of sensor can generate less noise, and I've seen people bandy around references to the size of each pixel and to the areas between the pixels as being significant. I'm not completely stupid and I do understand a bit about photography (coming from astronomy), but I don't follow these arguments at all.

Earlier this year I bought Canon's then top compact, the G10, which has 15mp on the sensor. That has now been superceded by the G11 which has 10mp on the same size sensor, albeit to a different design. The reason Canon gives is that this necessarily reduces digital noise and makes for better pictures. That view is being reiterated by photographers who've gone out and bought the new camera, including some who "upgraded" from the G10 to the G11. But looking at the photos posted by these people on various photo websites I'm far from convinced of the fact, and still not persuaded of the logic.

So, anyone understand and agree with the new thinking and able to explain it?

#360679 - 12/08/09 07:00 PM Re: Picture IQ, Mega-Pixels and Noise [Re: Peter Jones]
swanno Offline
This is way over my head but I found this. About half way down the article it adddresses your questions

Colin, Marianne & Sophie the Dog

#360686 - 12/08/09 07:50 PM Re: Picture IQ, Mega-Pixels and Noise [Re: swanno]
Peter Jones Offline
Yet again my post was lost after I hit [enter]! I'm not going to re-type it all, just to say that that article doesn't talk much about pixels, and what it does say suggests that pixels are themselves sub-divided into "spots" which receive various colours. That isn't my understanding, as I always thought that the pixel was the smallest unit of light-gathering hardware. Maybe I'm wrong and that's at the root of my confusion.

I also said that the low-light pictures on that website are simply superb, and largely persuaded me to get my own 5D. Time has moved on since that article (it's about four years old) and two of the class-leading full-frame cameras are now from Nikon, the D3 and D700. If I were starting now I'd probably get one of those. But when I bought my 5D Nikon didn't make any full-frame-sensor cameras.


Click for excellent scuba lessons with Elbert Greer!

Things to do

Daily News
Daily Weather

Classified Ads
San Pedro Sun
Ambergris Today
SP Town Council
Channel 7
Channel 5
Love FM
The Reporter
Caye Caulker

TV Newscasts
Radio Stations

Click for our
Search thousands of Belizean-only websites

Event Guides
Event Calendar
Specials & Events
Things to Do
iTravel Belize
Paradise Theater

San Pedro Scoop!
Tia Chocolate
My Beautiful Belize
I-Travel Belize
Belize Adventure
Belize Hub
Romantic Travel
Bound for Belize
Conch Creative
As The Coconuts Drop
More Blogs...
Search thousands of Belizean-only websites
Chaa Creek is an award-winning luxury Belize Resort, rated as one of the worlds best Eco Lodges. We are a pioneer in adventure travel to Belize since 1981!
White Sands Dive Shop - 5 Star PADI Dive Facility - Daily diving, SCUBA instruction and Snorkeling
Caribbean Inspired All Natural Condiments & Spice Blends, Over 100 are Gluten Free!
We manage a variety of homes, apartments, condos and commercial properties here on Ambergris Caye. Our minimum lease on ALL properties is six months.
Conch Shell Inn: All rooms are right on the beach in the heart of San Pedro, so within walking distance to anything and everything!!
Lilí Alphonse has snorkel equipment to fit anyone as well as Marine Park Tickets and flotation devices to assist those not as experienced.
Coastal Xpress offers a daily scheduled ferry run to most resorts, restaurants and private piers on the island of Anbergris Caye. We also offer  private and charter water taxi service.
Mini Chat

Cayo Espanto
Click for Cayo Espanto, and have your own private island
More Links
Click for exciting and adventurous tours of Belize with Katie Valk!
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
Who's Online
2 registered (2 invisible), 50 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
18,631 Registered Members
44 Forums
63,679 Topics
461,169 Posts

Most users ever online: 1,262 @ 06/10/07 02:16 PM

AmbergrisCaye.com CayeCaulker.org HELP! Visitor Center Goods & Services San Pedro Town
BelizeSearch.com Message Board Lodging Diving Fishing Things to Do History
BelizeNews.com Maps Phonebook Belize Business Directory
BelizeCards.com SanPedroDaily.com Picture of the Day

The opinions and views expressed on this board are the subjective opinions of Ambergris Caye Message Board members
and not of the Ambergris Caye Message Board its affiliates, or its employees.