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megapixels
I am new and very confused!.

I have been playing around with a Pentax K1000 for a few years and have decided to move into the digital world, I have been researching and reading until my head has begun to spin around!!.

I am looking at possible Nikon BUT am confused by the difference in megapixels between the D40 & D60. How important are "more" megapixels? The D40 sounds like an awesome camera. I need to make sure what I end up with will be a good long term, useable camera.Thanks All..

Comments (14)

How big will you print?.

Rf68 wrote:.

I am new and very confused!I have been playing around with a Pentax K1000 for a few years andhave decided to move into the digital world, I have been researchingand reading until my head has begun to spin around!!I am looking at possible Nikon BUT am confused by the difference inmegapixels between the D40 & D60. How important are "more"megapixels? The D40 sounds like an awesome camera. I need to makesure what I end up with will be a good long term, useable camera.Thanks All.

***********************************************Please visit my gallery at http://www.pbase.com/alfisti.

Pentax Lens examples at http://www.pbase.com/alfisti/images_by_lens.

Updated May '08..

Comment #1

First of all, I am looking for something I can learn on, get quality photos and enjoy! I would eventually love to be at the point of "no limits"...however, I am just starting out and feel I need to be somewhat budget minded...

Comment #2

D40 is plenty then, will easily do a great 8*10..

Rf68 wrote:.

First of all, I am looking for something I can learn on, get qualityphotos and enjoy! I would eventually love to be at the point of "nolimits"...however, I am just starting out and feel I need to besomewhat budget minded..

***********************************************Please visit my gallery at http://www.pbase.com/alfisti.

Pentax Lens examples at http://www.pbase.com/alfisti/images_by_lens.

Updated May '08..

Comment #3

Rf68 wrote:.

I am new and very confused!.

Good. Understanding that you are confused is essential to solving that issue..

I have been playing around with a Pentax K1000 for a few years andhave decided to move into the digital world, I have been researchingand reading until my head has begun to spin around!!.

The first step is to STOP reading so much. There is no other cure for over-reading than cessation!.

I am looking at possible Nikon BUT am confused by the difference inmegapixels between the D40 & D60. How important are "more"megapixels?.

Not very..

The D40 sounds like an awesome camera. I need to makesure what I end up with will be a good long term, useable camera..

Well, you are STILL confused. Digital cameras don't last as long as film cameras. Get used to it. The best you can do is to either sell your old camera to a beginner or save it for a backup to your newer body..

The D40 is a great starter camera. You will love it...for a while. But the pace of development in digital technology is so fast (still) that in 2-3 years you will likely want to move up. Nikon counts on you and me doing that!.

If the $ is a big issue, consider buying a used D40. They are readily available for about $300..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #4

You need to multiply by 4 to get twice as much quality..

Ex: an 8mp camera is NOT twice as better than a 4mp one..

5.0 MP - (2576x1932);4.4 MP - (2576x1716), 3:2;4.0 MP - (2304x1728);3.2 mp - 2048 x 15361.8 MP - (1552x1164).

Doubling resolution requires quadrupling the number of megapixels.8mp is _not_ double of 4mp.4sqrt = 28sqrt = 2.83(not double of 2)16sqrt = 4(double of 2)16mp is double of 4mp..

100 = 10 x 10200sqrt = 14.14 (not double of 10)400sqrt = 20(double of 10)400 = 20 x 20100 x 4 = 400.

MPs resolution4mp = 2000 x 20008mp = 4000 x 2000(_not_ double resolution of 4mp)16mp = 4000 x 4000(double resolution of 4mp)..

Comment #5

I just bought a used D50 for $300, and I love it. D40 doesn't have the AF motor thingie..

If it wasn't for the D50 I'd have bought the D80 due to this fact..

Without much photography knowledge the D50 blows me away in it's complexity.....

Comment #6

As was suggested by a previous poster, a lot depends on what size you want to print..

300 pixels per inch is generally accepted to give very high-quality prints at a resolution higher than the human eye can resolve, even when looking quite close (from about a foot away). For a 3000 x 2000 pixel image from the Nikon D40 that equates to about 10 x 7 inches..

In practice you tend to look at larger prints from further away: if you stand twice as far back (i.e. two feet) you cannot see details less than 1/150 inch (roughly), which allows you a 20 x 14 inch print at 150 pixels per inch..

6MP is therefore plenty for 'normal' purposes, like having fun learning with your first DSLR. I have a 6MP camera (Pentax, but it has the same sensor as the Nikon D40 I think) and have several A4 prints up around the house which look great. Nobody yet has taken a magnifying glass to one and complained that the pixels are slightly too far apart!.

If you plan to make a lot of big prints and stare at them very closely then you would benefit from more pixels. Landscape photographers who want to make prints four feet long that *will* be viewed very close up (because people like peering closely at landscape pix from short distances to pick out the details in the distance) often use 39MP medium-format cameras, or film cameras with 5 x 4 inch, or bigger, pieces of film in..

The D40 is a great camera to get going with. By the time you are frustrated with it's limitations - if you every get that far - you will be able to get something two generations better for the same price that it is now..

Best wishesMike..

Comment #7

MajorConfusion wrote:.

I just bought a used D50 for $300, and I love it. D40 doesn't havethe AF motor thingie..

I am seriously considering a used D50 (like they are ALL used by now) as a backup to my D300...sometimes I want to have two lenses available quickly..

If it wasn't for the D50 I'd have bought the D80 due to this fact..

Without much photography knowledge the D50 blows me away in itscomplexity....

The D40 is not as complex. It's perfect for a beginner. The lack of an AF motor in the body is not a problem for a beginner buying new kit glass. I just got the OP's head straight and you go and get him confused again. .

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #8

Romphotog wrote:.

You need to multiply by 4 to get twice as much quality. [snip with a vengance].

Yes, but you imply that 4X resolution will automatically deliver 2X IQ. It doesn't..

First, IQ is devilishly difficult to quantify..

However, as an example, if I was to find a camera that was in every way identical to the D40, but had 4X the number of pixels (ie, 24MP), 6" x 9" prints from these two cameras would be indistinguishable. There is simply not enough resolution in a 6" x 9" print at 300 DPI to show the difference...and if there WAS enough resolution (like you printed at 1200 DPI), the human eye can't resolve those tiny dots at any reasonable viewing distance..

Also, the kit lenses on that D40 w/ 24MP can't possibly deliver an image to the sensor with enough detail to make use of that resolution..

Charlie DavisNikon 5700, Sony R1, Nikon D300HomePage: http://www.1derful.infoBridge Blog: http://www.here-ugo.com/BridgeBlog/'Experience: Discovering that a claw hammer will bend nails.Epiphany: Discovering that a claw hammer is two tools...'..

Comment #9

Chuxter wrote:.

Romphotog wrote:.

You need to multiply by 4 to get twice as much quality. [snip with a vengance].

Yes, but you imply that 4X resolution will automatically deliver 2XIQ. It doesn't..

I am simply showing how the math works.I am not saying a Kodak P&S with 16mp is twice as good as a 4mp DSLR.Sensors on DSLRs are bigger than on P&S..

But people do get fooled by salesmen when they say that 8mp is twice as good as 4mp. You need to multiply by 4 to get twice as good res; thus 16mp is double size of 4mp.The MPs race is bunk. P&S will never go to 16mp...

Comment #10

Wait a few month. Samsung has 14 MP and Sony will have to respond with the improved 20 MP 1/2.3054124".VictorBucuresti, Romaniahttp://s106.photobucket.com/albums/m268/victor_petcu/http://picasaweb.google.com/teodor.nitica/..

Comment #11

Chuxter wrote:.

MajorConfusion wrote:.

I just bought a used D50 for $300, and I love it. D40 doesn't havethe AF motor thingie..

I am seriously considering a used D50 (like they are ALL used by now)as a backup to my D300...sometimes I want to have two lensesavailable quickly..

If it wasn't for the D50 I'd have bought the D80 due to this fact..

Without much photography knowledge the D50 blows me away in itscomplexity....

The D40 is not as complex. It's perfect for a beginner. The lack ofan AF motor in the body is not a problem for a beginner buying newkit glass. I just got the OP's head straight and you go and get himconfused again. .

I was thinking short term on camera, long term on lenses...only buying Prime lenses to start and only FX + DX format lenses. I don't want to throw anything away, even a kit lens, and you can't buy the D40 without a kit lens. When I upgrade bodies I'll slide right into the good lenses I've bought..

It was either D50 used, D80 new, or D300 or D700 for me. I chose the better glass to start and ended up with a FINE camera..

Check out these photos with D50 (everything on auto):.

Http://www.flickr.com/photos/28941600@N02/..

Comment #12

You can grow on the d80 because it has a built in focusing motor and 10 megapixels for cropping abilitythe d60 also has ten megapixels but no in body focusing motor.

So I would get one of those..

Comment #13

6mp is all you will need if you are printing at 8.5x11 or smaller. I've seen uncropped 6mp D70 prints at 12x18 and they looked quite good from mere inches away. However, if you want to print that large and wish to have the room to crop significantly, or print larger, than the 10mp might come in handy. If you like to shoot static subjects that you can carefully compose, then cropping becomes less of an issue..

Extra megapixels are nice for large print landscapes, or shooting wide for action shots that you can crop down, but honestly, the average person doesn't need it, and if they eventually find that they do, they often are at the point where they are ready to step up to a more capable camera than a D40/60..

Yes, some people think you can expand a D40 photo forever, or say to just stepping back until it looks good, but as noted, some of us stand right next to wall-sized landscapes. Still, my advice is to get the D40 unless you know you will need the extra mp...

Comment #14

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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