Support Cameralabs by shopping at my partner stores or buying me a coffee!
Buy me a coffee!

Follow my RSS feed at Camera Labs RSS Feed
  Latest camera reviews

Lumix G80 / G85
Olympus OMD EM1 II
Sony RX10 Mark III
Sony RX100 Mark V
Nikon COOLPIX B700
Sony A6500
Lumix FZ2000 / FZ2500
Nikon COOLPIX B500
Lumix LX10 / LX15
Fujifilm XT2
Nikon D3400
Canon EOS 5D Mark IV
Ricoh GR II
Canon G7X Mark II
Canon SX720 HS
Canon EOS 80D
Olympus TG Tracker
Nikon D500 review
Canon EOS 1300D / T6
Lumix GX80 / GX85
Fujifilm X-Pro2
Fujifilm X70
Lumix TZ80 ZS60
Sony A6300
Canon PowerShot G5X
Lumix TZ100 ZS100
Sony A7s Mark II
Sony RX10 II
Lumix FZ330 / FZ300
Sony RX100 IV
Canon G9X
Fujifilm XT10
Nikon COOLPIX L840
Canon SX530 HS
Olympus OMD EM10 II
Canon SX410 IS
Panasonic Lumix GX8
Olympus TOUGH TG860
Sony A7r Mark II
Canon PowerShot D30
Olympus TOUGH TG4
Canon PowerShot G3X
Canon EOS 5Ds
Nikon COOLPIX S9900
Sony HX90V
Canon EOS T6s 760D
Panasonic Lumix G7
Panasonic Lumix SZ8
Canon EOS M3
Olympus EPL7
Samsung NX3000
Panasonic Lumix GM5
Nikon D5500
Panasonic Lumix GF7
Olympus OMD EM5 II
Nikon COOLPIX S9700
Canon SX710 HS
Panasonic TZ70 / ZS50
Sony Alpha A7 Mark II
Canon EOS 7D Mark II
Fujifilm X100T
Nikon COOLPIX S3600
Sony Alpha A5100
Sigma DP1 Quattro
Sony Cyber-shot W830
Nikon COOLPIX L830
Nikon D750
Canon SX400 IS
Sony Cyber-shot H400
Panasonic Lumix LX100
Canon SX60 HS
Canon ELPH 340 IXUS 265
Canon G7X
Nikon COOLPIX P530
Canon SX520 HS
Canon G1 X Mark II
Panasonic Lumix FZ1000
Panasonic TZ60 / ZS40
Sony RX100 III review
Sony A3000 review
Canon EOS 1200D T5
Sony WX350
Nikon P600
Sony Alpha A5000
Sony Cyber-shot HX400V
Panasonic Lumix GH4
Panasonic TS5 FT5
Sony Alpha A6000
Canon SX700 HS
Canon SX600 HS
Olympus TOUGH TG2
Nikon AW1
Nikon D3300
Fujifilm XT1
Olympus STYLUS 1
Sony Cyber-shot RX10
Olympus OMD EM1
Panasonic Lumix GM1
Nikon D610
Sony Alpha A7
Nikon D5300
Canon PowerShot A2500
Sony Alpha A7r
Canon ELPH 130 IXUS 140
Nikon COOLPIX P520
Nikon COOLPIX L820
Canon PowerShot S120
Panasonic Lumix GX7
Canon SX510 HS
Canon PowerShot G16
Fujifilm X20
Panasonic FZ70 / FZ72
Canon EOS 70D
Sony RX100 II
Canon ELPH 330 IXUS 255
Panasonic Lumix GF6
Fujifilm XM1
Olympus EP5
Panasonic Lumix LF1
Panasonic TZ35 / ZS25
Olympus XZ2
Sony HX300
Panasonic Lumix G6
Sony HX50V
Fujifilm X100S
Canon SX280 HS
Canon EOS SL1 / 100D
Panasonic TZ40 / ZS30
Nikon D7100
Fujifilm X-E1
Canon EOS 6D
Nikon D5200
Panasonic Lumix GH3
Canon PowerShot S110
Panasonic Lumix G5
Sony NEX-6
Panasonic Lumix FZ200
Canon PowerShot SX50 HS
Nikon COOLPIX P7700
Olympus E-PL5
Canon EOS M
Panasonic TS20 / FT20
Canon PowerShot G15
Nikon D600
Nikon COOLPIX L810
Canon PowerShot D20
Sony RX100
Panasonic Lumix LX7
Canon SX500 IS
Fujifilm HS30 EXR
Sony HX200V
Panasonic FZ60 / FZ62
Canon 520HS / 500HS
Canon 110HS / 125HS
Nikon D800
Canon EOS T4i / 650D
Canon PowerShot A3400
Panasonic ZS15 / TZ25
Olympus E-M5
Nikon D3200
Fujifilm X-Pro1
Canon PowerShot A2300
Canon SX240 / SX260
Samsung NX200
Sony Alpha SLT-A77
Canon EOS 5D Mark III
Panasonic ZS20 / TZ30
Canon PowerShot G1 X
Sony NEX-7
Panasonic GX1
Olympus E-PM1
Nikon V1
Sony NEX-5N
Canon EOS T3 / 1100D
Canon EOS 600D / T3i
Nikon D7000
Canon EOS 60D
Canon EOS 550D / T2i
Canon EOS 7D

All camera reviews
  Best Buys: our top models
  Best Canon lens
Best Nikon lens
Best Sony lens
Best budget DSLR
Best mid-range DSLR
Best semi-pro DSLR
Best point and shoot
Best superzoom
Best camera accessories

Camera Labs Forum

Any questions, comments or a great tip to share? Join my Camera forum and let everyone know!
  DSLR Tips

Panasonic Lumix DMC-TZ10 / ZS7 Gordon Laing, March 2010

Panasonic Lumix DMC-TZ10 / ZS7 results : Real-life resolution / Sharpness wide-angle / Sharpness telephoto / High ISO Noise

Panasonic Lumix DMC-TZ10 / ZS7 Real-life sharpness when zoomed-out (Aperture Priority)

Support this site by
shopping below

To compare real-life performance when zoomed-out, we shot this scene with the Panasonic Lumix DMC-TZ10 / ZS7 in Aperture Priority mode at all f-numbers.

As before, the Lumix TZ10 / ZS7 was set to its lowest sensitivity and best-quality JPEG settings. The crops below are taken from the areas marked with the red rectangles and presented here at 100%. Note this image was shot on a different day to our first results page.

Below you'll see crops taken from the corner and centre portions of images shot with the lens zoomed-out at a variety of aperture settings, and you may be surprised by the results. DSLR owners are accustomed to closing their lens apertures down by a few stops to achieve a sweetspot in sharpness, but compact owners have to be much more careful. Due to their much smaller sensors and actual focal lengths, the sweetspot may in fact be with the aperture at (or close to) its widest opening, with smaller values quickly succumbing to the softening effect of diffraction.

You can see this clearly below, where the results become significantly softer beyond f4. Indeed the best result in terms of contrast and sharpness in the centre is arguably when the aperture is wide-open at f3.3. That said, with the aperture wide-open, there's a little optical softness in the extreme corners, which can be improved slightly at f4. The choice between f3.3 and f4 for ultimate quality when zoomed-out is a subtle one, but most will judge them both far superior to the smaller aperture values.

Unfortunately the TZ10 / ZS7, like many compacts, chooses its aperture in the automatic modes based on a strict line which doesn't always take diffraction into consideration. One look at our Sample Images Gallery and you'll see the camera regularly selecting f5.6 or even smaller under bright conditions, when the same exposure with sharper results could be achieved with a larger aperture and quicker shutter speed. The camera only seems to select larger apertures under dim conditions – or of course when you tell it to.

One of the major benefits of the TZ10 / ZS7 over its predecessor is the presence of Aperture and Shutter Priority, along with full Manual, allowing you to select exactly the aperture you're after. So if you're after the best image quality from the TZ10 / ZS7 when zoomed-out, set it to Aperture Priority and choose one of the smaller f-numbers to open the aperture and avoid diffraction. The depth-of-field may be reduced as a result, but since this is already so high with a typical compact you're unlikely to suffer from many out-of-focus areas.

Now let's see if the same approach works for the TZ10 / ZS7 when it's fully zoomed-in to its maximum focal length. Alternatively skip straight to our High ISO Noise results, or our Verdict.

Panasonic Lumix DMC-TZ10 / ZS7
Corner sharpness at 25mm equivalent
Panasonic Lumix DMC-TZ10 / ZS7
Centre sharpness at 25mm equivalent
f3.3, 80 ISO
f3.3, 80 ISO
f4, 80 ISO
f4, 80 ISO
f5.6, 80 ISO
f5.6, 80 ISO
f6.3, 80 ISO
f6.3, 80 ISO

Panasonic Lumix DMC-TZ10 / ZS7 results : Real-life resolution / Sharpness wide-angle / Sharpness telephoto / High ISO Noise

If you found this review useful, please support us by shopping below!
All words, images, videos and layout, copyright 2005-2017 Gordon Laing. May not be used without permission.

/ Best Cameras / Camera reviews / Supporting Camera Labs