Canon XSi vs Sigma fp
The Canon EOS Rebel XSi (called Canon 450D in some regions) and the Sigma fp are two digital cameras that were revealed to the public, respectively, in January 2008 and July 2019. The XSi is a DSLR, while the fp is a mirrorless interchangeable lens camera. The cameras are based on an APS-C (XSi) and a full frame (fp) sensor. The Canon has a resolution of 12.2 megapixels, whereas the Sigma provides 24 MP.
Below is an overview of the main specs of the two cameras as a starting point for the comparison.
Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel XSi and the Sigma fp? Which one should you buy? Read on to find out how these two cameras compare with respect to their body size, their imaging sensors, their shooting features, their input-output connections, and their reception by expert reviewers.
Body comparison
An illustration of the physical size and weight of the Canon XSi and the Sigma fp is provided in the side-by-side display below. The two cameras are presented according to their relative size. Three successive views from the front, the top, and the rear are shown. All size dimensions are rounded to the nearest millimeter.
If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sigma fp is considerably smaller (37 percent) than the Canon XSi. Moreover, the fp is markedly lighter (19 percent) than the XSi. It is noteworthy in this context that the fp is splash and dust-proof, while the XSi does not feature any corresponding weather-sealing.
The above size and weight comparisons are to some extent incomplete since they do not consider the interchangeable lenses that both of these cameras require. Hence, you might want to study and compare the specifications of available lenses in order to get the full picture of the size and weight of the two camera systems.
Concerning battery life, the XSi gets 500 shots out of its Canon LP-E5 battery, while the fp can take 280 images on a single charge of its Sigma BP-51 power pack. The power pack in the fp can be charged via the USB port, which can be very convenient when travelling.
The table below summarizes the key physical specs of the two cameras alongside a broader set of comparators. If you want to switch the focus of the display and review another camera pair, you can move across to the CAM-parator tool and choose from the broad selection of possible camera comparisons there.
# | Camera Model |
Camera Width |
Camera Height |
Camera Depth |
Camera Weight |
Battery Life |
Weather Sealing |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon XSi | 129 mm | 98 mm | 62 mm | 524 g | 500 | n | Jan 2008 | 799 | ebay.com | |
2. | Sigma fp | 113 mm | 70 mm | 45 mm | 422 g | 280 | Y | Jul 2019 | 1,899 | amazon.com | |
3. | Canon T6i | 132 mm | 101 mm | 78 mm | 555 g | 440 | n | Feb 2015 | 749 | ebay.com | |
4. | Canon T6s | 132 mm | 101 mm | 78 mm | 565 g | 440 | n | Feb 2015 | 649 | ebay.com | |
5. | Canon T4i | 133 mm | 100 mm | 79 mm | 575 g | 440 | n | Jun 2012 | 849 | ebay.com | |
6. | Canon T3 | 130 mm | 100 mm | 78 mm | 495 g | 700 | n | Feb 2011 | 449 | ebay.com | |
7. | Canon T2i | 129 mm | 98 mm | 62 mm | 530 g | 440 | n | Feb 2010 | 699 | ebay.com | |
8. | Canon T1i | 129 mm | 98 mm | 62 mm | 520 g | 400 | n | Mar 2009 | 799 | ebay.com | |
9. | Canon XS | 126 mm | 98 mm | 65 mm | 502 g | 500 | n | Jun 2008 | 449 | ebay.com | |
10. | Canon 40D | 146 mm | 108 mm | 74 mm | 822 g | 750 | n | Aug 2007 | 1,299 | ebay.com | |
11. | Canon XTi | 127 mm | 84 mm | 65 mm | 556 g | 370 | n | Aug 2006 | 799 | ebay.com | |
12. | Canon XT | 127 mm | 94 mm | 64 mm | 540 g | 400 | n | Feb 2005 | 899 | ebay.com | |
13. | Fujifilm X-Pro3 | 141 mm | 83 mm | 46 mm | 497 g | 440 | Y | Oct 2019 | 1,799 | amazon.com | |
14. | Nikon D780 | 144 mm | 116 mm | 76 mm | 840 g | 2260 | Y | Jan 2020 | 2,299 | amazon.com | |
15. | Panasonic S5 | 133 mm | 98 mm | 82 mm | 714 g | 440 | Y | Sep 2020 | 1,999 | amazon.com | |
16. | Panasonic S1 | 149 mm | 110 mm | 97 mm | 1017 g | 400 | Y | Feb 2019 | 2,499 | amazon.com | |
17. | Panasonic S1H | 151 mm | 114 mm | 110 mm | 1052 g | 400 | Y | May 2019 | 3,999 | amazon.com | |
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders. | |||||||||||
The price is, of course, an important factor in any camera decision. The manufacturer’s suggested retail prices give an idea on the placement of the camera in the maker’s lineup and the broader market. The XSi was launched at a markedly lower price (by 58 percent) than the fp, which puts it into a different market segment. Normally, street prices remain initially close to the MSRP, but after a couple of months, the first discounts appear. Later in the product cycle and, in particular, when the replacement model is about to appear, further discounting and stock clearance sales often push the camera price considerably down.
Sensor comparison
The size of the imaging sensor is a crucial determinant of image quality. A large sensor will tend to have larger individual pixels that provide better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixel-units in a sensor of the same technological generation. Further, a large sensor camera will give the photographer additional creative options when using shallow depth-of-field to isolate a subject from its background. On the downside, larger sensors tend to be more expensive and lead to bigger and heavier cameras and lenses.
Of the two cameras under consideration, the Canon XSi features an APS-C sensor and the Sigma fp a full frame sensor. The sensor area in the fp is 161 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 1.6 and 1.0. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.
With 24MP, the fp offers a higher resolution than the XSi (12.2MP), but the fp nevertheless has larger individual pixels (pixel pitch of 5.98μm versus 5.19μm for the XSi) due to its larger sensor. Moreover, the fp is a much more recent model (by 11 years and 5 months) than the XSi, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that the fp has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.
The resolution advantage of the Sigma fp implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the fp for good quality output (200 dots per inch) amounts to 30 x 20 inches or 76.2 x 50.8 cm, for very good quality (250 dpi) 24 x 16 inches or 61 x 40.6 cm, and for excellent quality (300 dpi) 20 x 13.3 inches or 50.8 x 33.9 cm. The corresponding values for the Canon XSi are 21.4 x 14.2 inches or 54.3 x 36.2 cm for good quality, 17.1 x 11.4 inches or 43.4 x 28.9 cm for very good quality, and 14.2 x 9.5 inches or 36.2 x 24.1 cm for excellent quality prints.
The Canon EOS Rebel XSi has a native sensitivity range from ISO 100 to ISO 1600. The corresponding ISO settings for the Sigma fp are ISO 100 to ISO 25600, with the possibility to increase the ISO range to 6-102400.
In terms of underlying technology, the XSi is build around a CMOS sensor, while the fp uses a BSI-CMOS imager. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.
Consistent information on actual sensor performance is available from DXO Mark for many cameras. This service determines an overall sensor rating, as well as sub-scores for low-light sensitivity ("DXO Sports"), dynamic range ("DXO Landscape"), and color depth ("DXO Portrait"). The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.
# | Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon XSi | APS-C | 12.2 | 4272 | 2848 | none | 21.9 | 10.8 | 692 | 61 | |
2. | Sigma fp | Full Frame | 24.0 | 6000 | 4000 | 4K/30p | 25.2 | 14.2 | 2829 | 94 | |
3. | Canon T6i | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.7 | 12.0 | 919 | 71 | |
4. | Canon T6s | APS-C | 24.0 | 6000 | 4000 | 1080/30p | 22.6 | 12.0 | 915 | 70 | |
5. | Canon T4i | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 21.7 | 11.2 | 722 | 62 | |
6. | Canon T3 | APS-C | 12.2 | 4272 | 2848 | 720/30p | 21.9 | 11.0 | 755 | 62 | |
7. | Canon T2i | APS-C | 17.9 | 5184 | 3456 | 1080/30p | 22.1 | 11.5 | 784 | 66 | |
8. | Canon T1i | APS-C | 15.1 | 4752 | 3168 | 1080/20p | 21.7 | 11.5 | 663 | 63 | |
9. | Canon XS | APS-C | 10.1 | 3888 | 2592 | none | 22.0 | 10.9 | 719 | 62 | |
10. | Canon 40D | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.3 | 703 | 64 | |
11. | Canon XTi | APS-C | 10.1 | 3888 | 2592 | none | 22.1 | 11.0 | 664 | 62 | |
12. | Canon XT | APS-C | 8.0 | 3456 | 2304 | none | 21.8 | 10.8 | 637 | 60 | |
13. | Fujifilm X-Pro3 | APS-C | 26.0 | 6240 | 4160 | 4K/30p | 24.1 | 13.6 | 1968 | 84 | |
14. | Nikon D780 | Full Frame | 24.3 | 6048 | 4024 | 4K/30p | 25.3 | 14.3 | 2877 | 95 | |
15. | Panasonic S5 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.1 | 14.5 | 2697 | 94 | |
16. | Panasonic S1 | Full Frame | 24.0 | 6000 | 4000 | 4K/60p | 25.2 | 14.5 | 3333 | 95 | |
17. | Panasonic S1H | Full Frame | 24.0 | 6000 | 4000 | 6K/30p | 25.2 | 14.2 | 2805 | 94 | |
Note: DXO values in italics represent estimates based on sensor size and age. |
Many modern cameras cannot only take still pictures, but also record videos. The fp indeed provides for movie recording, while the XSi does not. The highest resolution format that the fp can use is 4K/30p.
Feature comparison
Apart from body and sensor, cameras can and do differ across a range of features. For example, the XSi has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the fp relies on live view and the rear LCD for framing. That said, the fp can be equipped with an optional viewfinder – the EVF-11. The table below summarizes some of the other core capabilities of the Canon XSi and Sigma fp in connection with corresponding information for a sample of similar cameras.
# | Camera Model |
Viewfinder (Type or 000 dots) |
Control Panel (yes/no) |
LCD Specifications (inch/000 dots) |
LCD Attach- ment |
Touch Screen (yes/no) |
Max Shutter Speed * |
Max Shutter Flaps * |
Built-in Flash (yes/no) |
Built-in Image Stab |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon XSi | optical | n | 3.0 / 230 | fixed | n | 1/4000s | 3.5/s | Y | n | |
2. | Sigma fp | optional | n | 3.2 / 2100 | fixed | Y | 1/8000s | 12.0/s | n | n | |
3. | Canon T6i | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
4. | Canon T6s | optical | Y | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
5. | Canon T4i | optical | n | 3.0 / 1040 | swivel | Y | 1/4000s | 5.0/s | Y | n | |
6. | Canon T3 | optical | n | 2.7 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
7. | Canon T2i | optical | n | 3.0 / 1040 | fixed | n | 1/4000s | 3.7/s | Y | n | |
8. | Canon T1i | optical | n | 3.0 / 920 | fixed | n | 1/4000s | 3.4/s | Y | n | |
9. | Canon XS | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
10. | Canon 40D | optical | Y | 3.0 / 230 | fixed | n | 1/8000s | 6.5/s | Y | n | |
11. | Canon XTi | optical | n | 2.5 / 230 | fixed | n | 1/4000s | 3.0/s | Y | n | |
12. | Canon XT | optical | n | 1.8 / 115 | fixed | n | 1/4000s | 3.0/s | Y | n | |
13. | Fujifilm X-Pro3 | 3690 | n | 3.0 / 1620 | tilting | Y | 1/8000s | 8.0/s | n | n | |
14. | Nikon D780 | optical | Y | 3.2 / 2359 | tilting | Y | 1/8000s | 12.0/s | n | n | |
15. | Panasonic S5 | 2360 | n | 3.0 / 1840 | swivel | Y | 1/8000s | 7.0/s | n | Y | |
16. | Panasonic S1 | 5760 | Y | 3.2 / 2100 | full-flex | Y | 1/8000s | 9.0/s | n | Y | |
17. | Panasonic S1H | 5760 | Y | 3.2 / 2330 | swivel | Y | 1/8000s | 9.0/s | n | Y | |
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one. |
One difference between the cameras concerns the presence of an on-board flash. The XSi has one, while the fp does not. While the built-in flash of the XSi is not very powerful, it can at times be useful as a fill-in light.
The reported shutter speed information refers to the use of the mechanical shutter. Yet, some cameras only have an electronic shutter, while others have an electronic shutter in addition to a mechanical one. In fact, the fp is one of those camera that have an additional electronic shutter, which makes completely silent shooting possible. However, this mode is less suitable for photographing moving objects (risk of rolling shutter) or shooting under artificial light sources (risk of flickering).
The Sigma fp has an intervalometer built-in. This enables the photographer to capture time lapse sequences, such as flower blooming, a sunset or moon rise, without purchasing an external camera trigger and related software.
The XSi writes its imaging data to SDHC cards, while the fp uses SDXC cards. The fp supports UHS-II cards (Ultra High Speed data transfer of up to 312 MB/s), while the XSi cannot take advantage of Ultra High Speed SD cards.
Connectivity comparison
For some imaging applications, the extent to which a camera can communicate with its environment can be an important aspect in the camera decision process. The table below provides an overview of the connectivity of the Canon EOS Rebel XSi and Sigma fp and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.
# | Camera Model |
Hotshoe Port |
Internal Mic / Speaker |
Microphone Port |
Headphone Port |
HDMI Port |
USB Port |
WiFi Support |
NFC Support |
Bluetooth Support |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon XSi | Y | - / - | - | - | mini | 2.0 | - | - | - | |
2. | Sigma fp | Y | stereo / mono | Y | - | micro | 3.1 | - | - | - | |
3. | Canon T6i | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
4. | Canon T6s | Y | stereo / mono | Y | - | mini | 2.0 | Y | Y | - | |
5. | Canon T4i | Y | stereo / mono | Y | - | mini | 2.0 | - | - | - | |
6. | Canon T3 | Y | stereo / mono | - | - | mini | 2.0 | - | - | - | |
7. | Canon T2i | Y | stereo / - | Y | - | mini | 2.0 | - | - | - | |
8. | Canon T1i | Y | mono / mono | - | - | mini | 2.0 | - | - | - | |
9. | Canon XS | Y | - / - | - | - | - | 2.0 | - | - | - | |
10. | Canon 40D | Y | - / - | - | - | - | 2.0 | - | - | - | |
11. | Canon XTi | Y | - / - | - | - | - | 2.0 | - | - | - | |
12. | Canon XT | Y | - / - | - | - | - | 2.0 | - | - | - | |
13. | Fujifilm X-Pro3 | Y | stereo / mono | Y | - | - | 3.1 | Y | - | Y | |
14. | Nikon D780 | Y | stereo / mono | Y | Y | mini | 3.1 | Y | - | Y | |
15. | Panasonic S5 | Y | stereo / mono | Y | Y | micro | 3.2 | Y | - | Y | |
16. | Panasonic S1 | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y | |
17. | Panasonic S1H | Y | stereo / mono | Y | Y | full | 3.1 | Y | - | Y |
The fp is a recent model that features in the current product line-up of Sigma. In contrast, the XSi has been discontinued (but can be found pre-owned on ebay). As a replacement in the same line of cameras, the XSi was succeeded by the Canon T1i. Further information on the features and operation of the XSi and fp can be found, respectively, in the Canon XSi Manual (free pdf) or the online Sigma fp Manual.
Review summary
So what is the bottom line? Is there a clear favorite between the Canon XSi and the Sigma fp? Which camera is better? The listing below highlights the relative strengths of the two models.
Advantages of the Canon EOS Rebel XSi:
- Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
- Easier framing: Has an optical viewfinder for image composition and settings control.
- Longer lasting: Can take more shots (500 versus 280) on a single battery charge.
- Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
- More affordable: Was introduced into a lower priced category (58 percent cheaper at launch).
- More heavily discounted: Has been available for much longer (launched in January 2008).
Reasons to prefer the Sigma fp:
- More detail: Has more megapixels (24 vs 12.2MP), which boosts linear resolution by 40%.
- Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
- Better image quality: Is equipped with a larger and more technologically advanced sensor.
- Richer colors: The sensor size advantage translates into images with better, more accurate colors.
- More dynamic range: Larger sensor captures a wider spectrum of light and dark details.
- Better low-light sensitivity: Larger sensor produces good images even in poorly lit environments.
- Broader imaging potential: Can capture not only stills but also 4K/30p video.
- Larger screen: Has a bigger rear LCD (3.2" vs 3.0") for image review and settings control.
- More detailed LCD: Has a higher resolution rear screen (2100k vs 230k dots).
- Fewer buttons to press: Has a touchscreen to facilitate handling and shooting adjustments.
- Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
- Faster burst: Shoots at higher frequency (12 vs 3.5 flaps/sec) to capture the decisive moment.
- Less disturbing: Has an electronic shutter option for completely silent shooting.
- Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
- More compact: Is smaller (113x70mm vs 129x98mm) and will fit more readily into a bag.
- Less heavy: Has a lower weight (by 102g or 19 percent) and is thus easier to take along.
- Easier travel charging: Can be conveniently charged via its USB port.
- Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
- More legacy lens friendly: Can use many non-native lenses via adapters.
- Faster data transfer: Supports a more advanced USB protocol (3.1 vs 2.0).
- Faster buffer clearing: Has an SD card interface that supports the UHS-II standard.
- More modern: Reflects 11 years and 5 months of technical progress since the XSi launch.
If the count of individual advantages (bullet points above) is taken as a guide, the fp is the clear winner of the contest (22 : 6 points). However, the pertinence of the various camera strengths will differ across photographers, so that you might want to weigh individual camera traits according to their importance for your own imaging needs before making a camera decision. A professional wildlife photographer will view the differences between cameras in a way that diverges from the perspective of a family photog, and a person interested in architecture has distinct needs from a sports shooter. Hence, the decision which camera is best and worth buying is often a very personal one.
How about other alternatives? Do the specifications of the Canon XSi and the Sigma fp place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Mirrorless Interchangeable Lens Camera listings whether the two cameras rank among the cream of the crop.
In any case, while the comparison of the spec-sheets of cameras can offer a general idea of their imaging potential, it remains incomplete and does no justice, for example, to the way the XSi or the fp perform in practice. User reviews that are available, for instance, at amazon can sometimes shed light on these issues, but such feedback is all too often partial, inconsistent, and inaccurate.
Expert reviews
This is where reviews by experts come in. The adjacent summary-table relays the overall verdicts of several of the most popular camera review sites (amateurphotographer [AP], cameralabs [CL], digitalcameraworld [DCW], dpreview [DPR], ephotozine [EPZ], photographyblog [PB]). As can be seen, the professional reviewers agree in many cases on the quality of different cameras, but sometimes their assessments diverge, reinforcing the earlier point that a camera decision is often a very personal choice.
# | Camera Model |
AP score |
CL score |
DCW score |
DPR score |
EPZ score |
PB score |
Camera Launch |
Launch Price (USD) |
Street Price |
|
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon XSi | .. | + + | .. | + + | 4/5 | 4.5/5 | Jan 2008 | 799 | ebay.com | |
2. | Sigma fp | 4/5 | .. | 4/5 | .. | 4/5 | 4.5/5 | Jul 2019 | 1,899 | amazon.com | |
3. | Canon T6i | 5/5 | .. | .. | 75/100 | 4.5/5 | 4.5/5 | Feb 2015 | 749 | ebay.com | |
4. | Canon T6s | 5/5 | + | .. | 77/100 | 4.5/5 | 4.5/5 | Feb 2015 | 649 | ebay.com | |
5. | Canon T4i | 4/5 | + + | .. | 77/100 | 4.5/5 | 4.5/5 | Jun 2012 | 849 | ebay.com | |
6. | Canon T3 | .. | 80/100 | .. | 69/100 | 4/5 | 4.5/5 | Feb 2011 | 449 | ebay.com | |
7. | Canon T2i | .. | + + | .. | 77/100 | 4/5 | 4.5/5 | Feb 2010 | 699 | ebay.com | |
8. | Canon T1i | .. | + + | .. | 74/100 | 4.5/5 | 4.5/5 | Mar 2009 | 799 | ebay.com | |
9. | Canon XS | .. | 82/100 | .. | + + | 3.5/5 | 4.5/5 | Jun 2008 | 449 | ebay.com | |
10. | Canon 40D | .. | + + | .. | + + | 4.5/5 | 4.5/5 | Aug 2007 | 1,299 | ebay.com | |
11. | Canon XTi | .. | + + | .. | + + | o | 4/5 | Aug 2006 | 799 | ebay.com | |
12. | Canon XT | .. | 80/100 | .. | + + | o | .. | Feb 2005 | 899 | ebay.com | |
13. | Fujifilm X-Pro3 | 4/5 | + | 4/5 | 85/100 | 4/5 | .. | Oct 2019 | 1,799 | amazon.com | |
14. | Nikon D780 | 5/5 | .. | 5/5 | 87/100 | 4.5/5 | 4.5/5 | Jan 2020 | 2,299 | amazon.com | |
15. | Panasonic S5 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4.5/5 | Sep 2020 | 1,999 | amazon.com | |
16. | Panasonic S1 | 4.5/5 | + + | 4.5/5 | 88/100 | 4.5/5 | 4/5 | Feb 2019 | 2,499 | amazon.com | |
17. | Panasonic S1H | .. | .. | 4/5 | 90/100 | .. | .. | May 2019 | 3,999 | amazon.com | |
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available. |
Care should be taken when interpreting the review scores above, though. The assessments were made in relation to similar cameras of the same technological generation. A score, therefore, has to be seen in close connection to the price and market introduction time of the camera, and comparisons of ratings among very different cameras or across long time periods have little meaning. Also, please note that some of the review sites have changed their methodology and reporting over time.
Other camera comparisons
Did this review help to inform your camera decision process? In case you are interested in seeing how other cameras pair up, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Specifications: Canon XSi vs Sigma fp
Below is a side-by-side comparison of the specs of the two cameras to facilitate a quick review of their differences and common features.
Camera Model | Canon XSi | Sigma fp |
---|---|---|
Camera Type | Digital single lens reflex | Mirrorless system camera |
Camera Lens | Canon EF mount lenses | Leica L mount lenses |
Launch Date | January 2008 | July 2019 |
Launch Price | USD 799 | USD 1,899 |
Sensor Specs | Canon XSi | Sigma fp |
Sensor Technology | CMOS | BSI-CMOS |
Sensor Format | APS-C Sensor | Full Frame Sensor |
Sensor Size | 22.2 x 14.8 mm | 35.9 x 23.9 mm |
Sensor Area | 328.56 mm2 | 858.01 mm2 |
Sensor Diagonal | 26.7 mm | 43.1 mm |
Crop Factor | 1.6x | 1.0x |
Sensor Resolution | 12.2 Megapixels | 24 Megapixels |
Image Resolution | 4272 x 2848 pixels | 6000 x 4000 pixels |
Pixel Pitch | 5.19 μm | 5.98 μm |
Pixel Density | 3.70 MP/cm2 | 2.80 MP/cm2 |
Moiré control | Anti-Alias filter | no AA filter |
Movie Capability | no Video | 4K/30p Video |
ISO Setting | 100 - 1,600 ISO | 100 - 25,600 ISO |
ISO Boost | no Enhancement | 6 - 102,400 ISO |
DXO Sensor Quality (score) | 61 | .. |
DXO Color Depth (bits) | 21.9 | .. |
DXO Dynamic Range (EV) | 10.8 | .. |
DXO Low Light (ISO) | 692 | .. |
Screen Specs | Canon XSi | Sigma fp |
Viewfinder Type | Optical viewfinder | Viewfinder optional |
Viewfinder Field of View | 95% | |
Viewfinder Magnification | 0.54x | |
LCD Framing | Live View | Live View |
Rear LCD Size | 3.0inch | 3.2inch |
LCD Resolution | 230k dots | 2100k dots |
LCD Attachment | Fixed screen | Fixed screen |
Touch Input | no Touchscreen | Touchscreen |
Shooting Specs | Canon XSi | Sigma fp |
Focus System | Phase-detect AF | Contrast-detect AF |
Manual Focusing Aid | no Peaking Feature | Focus Peaking |
Max Shutter Speed (mechanical) | 1/4000s | 1/8000s |
Continuous Shooting | 3.5 shutter flaps/s | 12 shutter flaps/s |
Electronic Shutter | no E-Shutter | up to 1/8000s |
Time-Lapse Photography | no Intervalometer | Intervalometer built-in |
Fill Flash | Built-in Flash | no On-Board Flash |
Storage Medium | SDHC cards | SDXC cards |
Single or Dual Card Slots | Single card slot | Single card slot |
UHS card support | no | UHS-II |
Connectivity Specs | Canon XSi | Sigma fp |
External Flash | Hotshoe | Hotshoe |
USB Connector | USB 2.0 | USB 3.1 |
HDMI Port | mini HDMI | micro HDMI |
Microphone Port | no MIC socket | External MIC port |
Wifi Support | no Wifi | no Wifi |
Body Specs | Canon XSi | Sigma fp |
Environmental Sealing | not weather sealed | Weathersealed body |
Battery Type | Canon LP-E5 | Sigma BP-51 |
Battery Life (CIPA) | 500 shots per charge | 280 shots per charge |
In-Camera Charging | no USB charging | USB charging |
Body Dimensions |
129 x 98 x 62 mm (5.1 x 3.9 x 2.4 in) |
113 x 70 x 45 mm (4.4 x 2.8 x 1.8 in) |
Camera Weight | 524 g (18.5 oz) | 422 g (14.9 oz) |
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