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We reviewed three of the more popular 'pocket printers,' the Canon Ivy, Fujifilm Instax Share and Polaroid ZIP. Here's the one we recommend...
With the FZ50 sensor being 1/1.8" with 10.4 million pixels, and the FZ18 being 1/2.5" with 8.3 million, should that not solve some of the questions regarding noise being discussed here re the FZ50, all else being equal (which I understand they are not)?
The FZ18 has smaller pixels than the FZ50 so one would expect the FZ18 to be noisier (other things being equal.)
If the pixels were square, the area per pixel would be:
FZ18 (1/2.5)^2/8.3 = 0.0193 sq_in/million_pixels
FZ50 (1/1.8)^2/10.4 = 0.0297 sq_in/million_pixels
The ratio of pixel areas is about 2/3. The signal to noise ratio due to shot noise would be the square root of this, about 1/2.
The FZ18 sensor is smaller than the FZ50 sensor, not larger.
1/2.5 is a lot SMALLER than 1/1.8 so the FZ50 sensor is larger than the one of the FZ18. So its just the other way around, noise on the FZ18 may be more (and NR may have to be increased). We will know after test, but from the pictures I have seen thus far, I was not at all impressed and noise even at 100ISO could easily be seen!!
Just to show you, a copy of part of the the table in the glossary with the sizes of sensors:
Type Aspect Ratio Dia. (mm) Diagonal Width Height
1/3.6" 4:3 7.056 5.000 4.000 3.000
1/3.2" 4:3 7.938 5.680 4.536 3.416
1/3" 4:3 8.467 6.000 4.800 3.600
1/2.7" 4:3 9.407 6.721 5.371 4.035
1/2.5" 4:3 10.160 7.182 5.760 4.290
1/2" 4:3 12.700 8.000 6.400 4.800
1/1.8" 4:3 14.111 8.933 7.176 5.319
1/1.7" 4:3 14.941 9.500 7.600 5.700
2/3" 4:3 16.933 11.000 8.800 6.600
1" 4:3 25.400 16.000 12.800 9.600
4/3" 4:3 33.867 22.500 18.000 13.500
1.8" ( ) 3:2 45.720 28.400 23.700 15.700
35 mm film 3:2 n/a 43.300 36.000 24.000
Following testing of the Panasonic Lumix DC-LX100 II, we've added it to our Pocketable Enthusiast Compact Cameras buying guide as joint-winner, alongside Sony's Cyber-shot RX100 VA.
If you're looking for a high-quality camera, you don't need to spend a ton of cash, nor do you need to buy the latest and greatest new product on the market. In our latest buying guide we've selected some cameras that while they're a bit older, still offer a lot of bang for the buck.
What's the best camera for under $500? These entry level cameras should be easy to use, offer good image quality and easily connect with a smartphone for sharing. In this buying guide we've rounded up all the current interchangeable lens cameras costing less than $500 and recommended the best.
Whether you've grown tired of what came with your DSLR, or want to start photographing different subjects, a new lens is probably in order. We've selected our favorite lenses for Sony mirrorlses cameras in several categories to make your decisions easier.
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