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View Full Version : D80 vs k100d church photos



gfmucci
08-22-2006, 06:04 PM
Take a look at the two photos of the interior of the church displayed on this site (see home page listing of recent photos by new cameras): 1 taken by the Pentax k100d and the other by the Nikon D80.

I printed each one out and the D80 printed notably darker. I checked the exif data for each shot, and if I'm reading it correctly, the Nikon was shot slightly slower (1/25 vs 1/30 for Pentax), everything else being equal.

Pentax: 1/30; f3.5; 1600 iso
Nikon: 1/25; f3.5; 1600 iso

What would cause the slightly longer Nikon exposure to come out slightly darker, with some noticable loss of detail?

krzkrzkrz
08-22-2006, 10:26 PM
Probably the megapixel difference. The D80 is set at 10mp while the K100D at 6mp

MatH
08-23-2006, 01:51 AM
Declared ISO isn't always acurate, light might be dimmer...

colonel
08-23-2006, 02:28 AM
Nikon cameras characteristically underexpose.

Nikon's argument is that underexposure preserves more detail and can be corrected in pc/mac software.

Canon cameras tend to slightly overexpose. This tends to get better looking pictures out of the box. But a bit less natural and subject to slight loss of detail.

Pentax tends to be in the middle which is why I like them.

It will be interesting when the Pentax K10 (10 mp) comes out to compare it with the Nikon D80 and Canon 5. Also the Canon 350 is due for replacement soon, so that will be interesting.

I would also be careful about comparing pictures taken at different times from different positions, even if the difference is only mm as slight changes can effect the exposure. The only way to properly compare is to use a fixed tripod and complete artificial lighting (flood lights are best) so that you can gurantee that the light level is 100% the same between cameras.

rgds

CptOfGondor
08-24-2006, 07:12 PM
They all sony CCDs..lol. Except Canons.

btw, what lenses did Jeff use?

LoL The K10D..thats funny. Pulling a Canon dSLR naming convention. I wanna see a pro K1D sometime.

Rex914
08-24-2006, 09:24 PM
Jeff used the respective kit lenses for each camera as noted on both photo gallery pages at the top.

jeisner
08-24-2006, 11:26 PM
I wanna see a pro K1D sometime.

I'm told your wish will be granted ;-)

Rex914
08-24-2006, 11:28 PM
Isn't it something like September 13th when Pentax will unveil its next DSLR?

colonel
08-25-2006, 01:51 AM
They all sony CCDs..lol. Except Canons.

btw, what lenses did Jeff use?

LoL The K10D..thats funny. Pulling a Canon dSLR naming convention. I wanna see a pro K1D sometime.

correct, but we are talking about exposure metering hardware and software, not the sensor