8R prints need how many megapixel?

Bullpit · 1st January 2004

If I'm trying to print 8R, the digicam should be at least how many megapixel?

OzOn3 · 1st January 2004

a 4R image would be about 2mp.. so 8R i guess 4mp?? I'm not very sure either.. =x

megaweb · 1st January 2004

8R is 8" x 10"

so for photo quality ( 300 dpi ) , the resolution is (8" x 10")x 300 = 2400 x 3000

which is abt 6 megapixel

Bullpit · 1st January 2004

so it means if I got a 4mp digicam, I should not print 8R? hmm...what is the effect of 150dpi? haha.

Cos my school got a photo exhibition and the pics are supposed to be in 8R. Geez, means with my lousy cam, I cannot take part?

ckiang · 1st January 2004

8R can be printed from as low as 2mp (1600x1200). With proper technique, even a 2mp image can do a decent 8R. 4mp should not be a problem at all. I've even printed 3mp at 10x15".

Regards
CK

sehsuan · 2nd January 2004

i have only experienced printing from at worst, a file with just under 200dpi. still can survive. but if you crop and so on, you'd expect lesser pixel density...

lauLEE · 2nd January 2004

from my experience, 2 meg can still give good print at 8 x 12" (Super 8R).
but remember no cropping. use original file.

AReality · 2nd January 2004

actually, a 640x480 photo will do.
Just remember to stand at least 5m from the photo when looking at it.

ST1100 · 2nd January 2004

Originally Posted by megaweb

8R is 8" x 10"

so for photo quality ( 300 dpi ) , the resolution is (8" x 10")x 300 = 2400 x 3000

which is abt 6 megapixel

2400x3000 gives 7.2 mpix. Your calculator low on battery?

Azure · 2nd January 2004

Originally Posted by Bullpit

so it means if I got a 4mp digicam, I should not print 8R? hmm...what is the effect of 150dpi? haha.

Cos my school got a photo exhibition and the pics are supposed to be in 8R. Geez, means with my lousy cam, I cannot take part?

Rubbish.

Take a good picture at full 4Mp, use the crop tool in PS and crop out your 10x8 (at 300dpi). I'm using a 4Mp Coolpix and 8R is done (AG-goers have seen that) without noticeable issues.
Ckiang is right, too. A few of my 4Mp shots have made 12R for friends and clients.

ckiang · 2nd January 2004

Originally Posted by Azure

Rubbish.

Take a good picture at full 4Mp, use the crop tool in PS and crop out your 10x8 (at 300dpi). I'm using a 4Mp Coolpix and 8R is done (AG-goers have seen that) without noticeable issues.
Ckiang is right, too. A few of my 4Mp shots have made 12R for friends and clients.

Ya know, thanks to marketing, in time to come, we will need 20mp to make 8R prints.

Regards
CK

Belle&Sebastain · 2nd January 2004

i have printed 3mp on d30 in jpeg mode (s)fine on super 8r, no problem still sharp.

Noir · 2nd January 2004

To a certain degree, the megapixel marketing hype is at work here. Technology is only here to help. Never ever overlook proper conventional photography techniques.

A quality 3 megapixel camera is sufficient to reproduce a good image on 8R. Important factors should also include the dynamic range each pixel on the CCD or CMOS can reproduce, noise and lossy compression aritfacts intorduced within the processor of camera.

denizenx · 3rd January 2004

3mp can do full A4.
no probs unless u shoot moire for living...
think more important is the jpeg compression...

MaGixShOe · 3rd January 2004

just printed 2 12r photos

1 6mp and 1 from 2mp

the 6mp one looks great! but when examine closely can see that the resolution not enough like that

the 2mp one.... no quality to talk about... but from far see still acceptable la

jovedaddy · 3rd January 2004

from fotohub.com, 1600x1200 is all you need for 8R (8x12).
have double checked with them on an earlier occasion and they insisted that anything larger than that would not make a difference on the printout.
anyone can confirm that?

showtime · 3rd January 2004

Originally Posted by ckiang

8R can be printed from as low as 2mp (1600x1200). With proper technique, even a 2mp image can do a decent 8R. 4mp should not be a problem at all. I've even printed 3mp at 10x15".

Regards
CK

using interpolation software or reducing the print resolution?

forbytes · 3rd January 2004

Click here to see what canon has to say about Megapixel and printout size.

ckiang · 3rd January 2004

Originally Posted by showtime

using interpolation software or reducing the print resolution?

I simply sent the file to the lab, or to the printer. Yeah, I guess that's reducing print resolution to around 150ppi (not to be confused with the printer dpi of e.g. 1440dpi)

Regards
CK

ckiang · 3rd January 2004

Originally Posted by forbytes

Click here to see what canon has to say about Megapixel and printout size.

Actually, they are a bit over conservative.

Then again, they are camera makers trying to sell you higher resolution cameras, so....

I still remember in Y2k, all the camera makers are saying their 2mp can print 8R (and many has successfully done so....)

Regards
CK

1st January 2004	#1
Bullpit New Member Join Date: Dec 2002 Posts: 48	8R prints need how many megapixel? If I'm trying to print 8R, the digicam should be at least how many megapixel?

1st January 2004	#3
megaweb Moderator Join Date: Jan 2002 Location: East Posts: 8,106	8R is 8" x 10" so for photo quality ( 300 dpi ) , the resolution is (8" x 10")x 300 = 2400 x 3000 which is abt 6 megapixel __________________ See my Photo Gallery at the Clubsnap \| Pbase

2nd January 2004	#8
AReality Senior Member Join Date: Jun 2003 Posts: 4,392	actually, a 640x480 photo will do. Just remember to stand at least 5m from the photo when looking at it. __________________ . The Visual Journalist

2nd January 2004	#13
Noir Member Join Date: Apr 2003 Posts: 321	To a certain degree, the megapixel marketing hype is at work here. Technology is only here to help. Never ever overlook proper conventional photography techniques. A quality 3 megapixel camera is sufficient to reproduce a good image on 8R. Important factors should also include the dynamic range each pixel on the CCD or CMOS can reproduce, noise and lossy compression aritfacts intorduced within the processor of camera. Last edited by Noir; 2nd January 2004 at 09:34 PM.

3rd January 2004	#14
denizenx Senior Member Join Date: Feb 2002 Location: L2TPYSG Posts: 4,514	3mp can do full A4. no probs unless u shoot moire for living... think more important is the jpeg compression... __________________ "I'm... dreaming... of a wide... angle~ Just like the ones I used to know~"

1st January 2004	#2
OzOn3 Member Join Date: Jul 2003 Location: Singapore Posts: 1,103	a 4R image would be about 2mp.. so 8R i guess 4mp?? I'm not very sure either.. =x

1st January 2004	#5
ckiang Senior Member Join Date: Jan 2002 Location: Singapore Posts: 6,597	8R can be printed from as low as 2mp (1600x1200). With proper technique, even a 2mp image can do a decent 8R. 4mp should not be a problem at all. I've even printed 3mp at 10x15". Regards CK

2nd January 2004	#6
sehsuan Deregistered Join Date: Dec 2002 Location: Singapore Posts: 6,674	i have only experienced printing from at worst, a file with just under 200dpi. still can survive. but if you crop and so on, you'd expect lesser pixel density...

2nd January 2004	#7
lauLEE Member Join Date: Jun 2003 Location: North-East Posts: 269	from my experience, 2 meg can still give good print at 8 x 12" (Super 8R). but remember no cropping. use original file.

2nd January 2004	#12
Belle&Sebastain Senior Member Join Date: Jun 2002 Location: here Posts: 3,752	i have printed 3mp on d30 in jpeg mode (s)fine on super 8r, no problem still sharp.

3rd January 2004	#15
MaGixShOe Senior Member Join Date: Apr 2002 Posts: 2,638	just printed 2 12r photos 1 6mp and 1 from 2mp the 6mp one looks great! but when examine closely can see that the resolution not enough like that the 2mp one.... no quality to talk about... but from far see still acceptable la __________________ Photo Gallery http://magixshoe.clubsnap.org/gallery

3rd January 2004	#16
jovedaddy Member Join Date: Feb 2002 Location: Sengkang Posts: 391	from fotohub.com, 1600x1200 is all you need for 8R (8x12). have double checked with them on an earlier occasion and they insisted that anything larger than that would not make a difference on the printout. anyone can confirm that?

3rd January 2004	#18
forbytes Member Join Date: Jun 2003 Location: West, Singapore Posts: 887	Click here to see what canon has to say about Megapixel and printout size.