Fujifilm X-T10 vs Sony A77

The Fujifilm X-T10 and the Sony Alpha SLT-A77 are two digital cameras that were announced, respectively, in May 2015 and August 2011. The X-T10 is a mirrorless interchangeable lens camera, while the A77 is a DSLR. Both cameras are equipped with an APS-C sensor. The Fujifilm has a resolution of 16 megapixels, whereas the Sony provides 24 MP.

Below is an overview of the main specs of the two cameras as a starting point for the comparison.

Headline Specifications

Fujifilm X-T10		Sony A77
Mirrorless system camera		Digital single lens reflex
Fujifilm X mount lenses		Sony A mount lenses
16 MP – APS-C sensor		24 MP – APS-C sensor
1080/60p Video		1080/60p Video
ISO 200-6,400 (100 - 51,200)		ISO 100-16,000 (50 - 25,600)
Electronic viewfinder (2360k dots)		Electronic viewfinder (2359k dots)
3.0" LCD – 920k dots		3.0" LCD – 921k dots
Tilting screen (no touchscreen)		Fully flexible screen (no touchscreen)
8 shutter flaps per second		12 shutter flaps per second
Lens stabilization only		In-body stabilization
not weather sealed		Weathersealed body
350 shots per battery charge		470 shots per battery charge
118 x 83 x 41 mm, 381 g		143 x 104 x 81 mm, 732 g

Check X-T10 offers at
ebay.com
Check A77 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Fujifilm X-T10 and the Sony Alpha SLT-A77? 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

The side-by-side display below illustrates the physical size and weight of the Fujifilm X-T10 and the Sony A77. The two cameras are presented according to their relative size. Three consecutive perspectives from the front, the top, and the back are available. All width, height and depth measures are rounded to the nearest millimeter.

The X-T10 can be obtained in two different colors (black, silver), while the A77 is only available in black.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Sony A77 is considerably larger (52 percent) than the Fujifilm X-T10. Moreover, the A77 is substantially heavier (92 percent) than the X-T10. It is noteworthy in this context that the A77 is splash and dust-proof, while the X-T10 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 X-T10 gets 350 shots out of its Fujifilm NP-W126 battery, while the A77 can take 470 images on a single charge of its Sony NP-FM500H power pack.

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.

Body Specifications

		Camera Model	Camera Width	Camera Height	Camera Depth	Camera Weight	Battery Life	Weather Sealing	Camera Launch	Launch Price (USD)	Street Price
1.		Fujifilm X-T10	118 mm	83 mm	41 mm	381 g	350	n	May 2015	799	ebay.com
2.		Sony A77	143 mm	104 mm	81 mm	732 g	470	Y	Aug 2011	1,399	ebay.com
3.		Fujifilm X-A1	117 mm	67 mm	39 mm	330 g	350	n	Sep 2013	399	ebay.com
4.		Fujifilm X-A2	117 mm	67 mm	40 mm	350 g	410	n	Jan 2015	399	ebay.com
5.		Fujifilm X-A10	117 mm	67 mm	40 mm	331 g	410	n	Dec 2016	399	ebay.com
6.		Fujifilm X-E1	129 mm	75 mm	38 mm	350 g	350	n	Sep 2012	999	ebay.com
7.		Fujifilm X-E2	129 mm	75 mm	37 mm	350 g	350	n	Oct 2013	999	ebay.com
8.		Fujifilm X-E2S	129 mm	75 mm	37 mm	350 g	350	n	Jan 2016	699	ebay.com
9.		Fujifilm X-M1	117 mm	67 mm	39 mm	330 g	350	n	Jun 2013	699	ebay.com
10.		Fujifilm X-Pro1	140 mm	82 mm	43 mm	450 g	300	n	Jan 2012	1,699	ebay.com
11.		Fujifilm X-T20	118 mm	83 mm	41 mm	383 g	350	n	Jan 2017	899	ebay.com
12.		Fujifilm X70	113 mm	64 mm	44 mm	340 g	330	n	Jan 2016	799	ebay.com
13.		Pentax K-3	131 mm	100 mm	77 mm	800 g	560	Y	Oct 2013	1,299	ebay.com
14.		Sony A7 II	127 mm	96 mm	60 mm	599 g	350	Y	Nov 2014	1,999	ebay.com
15.		Sony A77 II	143 mm	104 mm	81 mm	647 g	480	Y	May 2014	1,199	ebay.com
16.		Sony A99	147 mm	111 mm	78 mm	812 g	500	Y	Sep 2012	2,799	ebay.com
17.		Sony A6500	120 mm	67 mm	53 mm	453 g	350	Y	Oct 2016	1,399	ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.
Convert to Imperial

The price is, of course, an important factor in any camera decision. The listed launch prices provide an indication of the market segment that the manufacturer of the cameras have been targeting. The X-T10 was launched at a markedly lower price (by 43 percent) than the A77, which puts it into a different market segment. Usually, retail prices stay at first close to the launch price, but after several months, discounts become available. 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. Then, after the new model is out, very good deals can frequently be found on the pre-owned market.

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.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. They nevertheless have the same format factor of 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Despite having a slightly smaller sensor, the A77 offers a higher resolution of 24 megapixels, compared with 16 MP of the X-T10. This megapixels advantage comes at the cost of a higher pixel density and a smaller size of the individual pixel (with a pixel pitch of 3.91μm versus 4.80μm for the X-T10). Moreover, it should be noted that the X-T10 is much more recent (by 3 years and 8 months) than the A77, and its sensor will have benefitted from technological advances during this time that further enhance the light gathering capacity of its pixels. Coming back to sensor resolution, it should be mentioned that the X-T10 has no anti-alias filter installed, so that it can capture all the detail its sensor resolves.

The resolution advantage of the Sony A77 implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the A77 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 Fujifilm X-T10 are 24.5 x 16.3 inches or 62.2 x 41.5 cm for good quality, 19.6 x 13.1 inches or 49.7 x 33.2 cm for very good quality, and 16.3 x 10.9 inches or 41.5 x 27.6 cm for excellent quality prints.

The X-T10 has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Fujifilm X-T10 has a native sensitivity range from ISO 200 to ISO 6400, which can be extended to ISO 100-51200. The corresponding ISO settings for the Sony Alpha SLT-A77 are ISO 100 to ISO 16000, with the possibility to increase the ISO range to 50-25600.

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. The X-T10 uses Fujifilm's X-Trans layout of photosites, while the A77 employs the more common Bayer array.

For many cameras, data on sensor performance has been reported by DXO Mark. This service is based on lab testing and assigns an overall score to each camera sensor, as well as ratings for dynamic range ("DXO Landscape"), color depth ("DXO Portrait"), and low-light sensitivity ("DXO Sports"). The adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Fujifilm X-T10	APS-C	16.0	4896	3264	1080/60p	23.7	12.9	1546	79
2.		Sony A77	APS-C	24.0	6000	4000	1080/60p	24.0	13.2	801	78
3.		Fujifilm X-A1	APS-C	16.0	4896	3264	1080/30p	23.4	12.6	1390	76
4.		Fujifilm X-A2	APS-C	16.0	4896	3264	1080/30p	23.6	12.8	1515	79
5.		Fujifilm X-A10	APS-C	16.0	4896	3264	1080/30p	23.9	13.2	1691	81
6.		Fujifilm X-E1	APS-C	16.0	4896	3264	1080/24p	23.2	12.4	1298	75
7.		Fujifilm X-E2	APS-C	16.0	4896	3264	1080/60p	23.4	12.6	1400	77
8.		Fujifilm X-E2S	APS-C	16.0	4896	3264	1080/60p	23.7	13.0	1608	80
9.		Fujifilm X-M1	APS-C	16.0	4896	3264	1080/30p	23.4	12.6	1371	76
10.		Fujifilm X-Pro1	APS-C	16.0	4896	3264	1080/24p	23.1	12.3	1238	74
11.		Fujifilm X-T20	APS-C	24.0	6000	4000	4K/30p	23.9	13.2	1704	81
12.		Fujifilm X70	APS-C	16.0	4896	3264	1080/60p	23.7	13.0	1608	80
13.		Pentax K-3	APS-C	24.1	6016	4000	1080/60i	23.7	13.4	1216	80
14.		Sony A7 II	Full Frame	24.0	6000	4000	1080/60p	24.9	13.6	2449	90
15.		Sony A77 II	APS-C	24.0	6000	4000	1080/60p	24.4	13.4	1013	82
16.		Sony A99	Full Frame	24.0	6000	4000	1080/60p	25.0	14.0	1555	89
17.		Sony A6500	APS-C	24.0	6000	4000	4K/30p	24.5	13.7	1405	85
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. Both cameras under consideration are equipped with sensors that have a sufficiently high read-out speed for moving images, and both provide the same movie specifications (1080/60p).

Feature comparison

Apart from body and sensor, cameras can and do differ across a range of features. The two cameras under consideration are similar with respect to both having an electronic viewfinder. However, the one in the X-T10 offers a slightly higher resolution than the one in the A77 (2360k vs 2359k dots). The following table reports on some other key feature differences and similarities of the Fujifilm X-T10, the Sony A77, and comparable cameras.

Core Features

		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.		Fujifilm X-T10	2360	n	3.0 / 920	tilting	n	1/4000s	8.0/s	Y	n
2.		Sony A77	2359	Y	3.0 / 921	full-flex	n	1/8000s	12.0/s	Y	Y
3.		Fujifilm X-A1	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
4.		Fujifilm X-A2	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
5.		Fujifilm X-A10	none	n	3.0 / 1040	tilting	n	1/4000s	6.0/s	Y	n
6.		Fujifilm X-E1	2360	n	2.8 / 460	fixed	n	1/4000s	6.0/s	Y	n
7.		Fujifilm X-E2	2360	n	3.0 / 1040	fixed	n	1/4000s	7.0/s	Y	n
8.		Fujifilm X-E2S	2360	n	3.0 / 1040	fixed	n	1/4000s	7.0/s	Y	n
9.		Fujifilm X-M1	none	n	3.0 / 920	tilting	n	1/4000s	5.6/s	Y	n
10.		Fujifilm X-Pro1	1440	n	3.0 / 1230	fixed	n	1/4000s	6.0/s	n	n
11.		Fujifilm X-T20	2360	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
12.		Fujifilm X70	optional	n	3.0 / 1040	tilting	Y	1/4000s	8.0/s	Y	n
13.		Pentax K-3	optical	Y	3.2 / 1037	fixed	n	1/8000s	8.3/s	Y	Y
14.		Sony A7 II	2400	n	3.0 / 1230	tilting	n	1/8000s	5.0/s	n	Y
15.		Sony A77 II	2359	Y	3.0 / 1229	full-flex	n	1/8000s	12.0/s	Y	Y
16.		Sony A99	2359	Y	3.0 / 1229	full-flex	n	1/8000s	6.0/s	n	Y
17.		Sony A6500	2359	n	3.0 / 922	tilting	Y	1/4000s	11.0/s	Y	Y
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One feature that differentiates the A77 and the X-T10 is in-body image stabilization (IBIS). The A77 reduces the risk of handshake-induced blur with all attached lenses, while the X-T10 offers no blur reduction with lenses that themselves do not provide optical image stabilization.

The Fujifilm X-T10 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 X-T10 writes its imaging data to SDXC cards, while the A77 uses SDXC or Memory Stick PRO Duo cards. Both cameras can use UHS-I cards, which provide for Ultra High Speed data transfer of up to 104 MB/s.

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 Fujifilm X-T10 and Sony Alpha SLT-A77 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

Input-Output Connections

		Camera Model	Hotshoe Port	Internal Mic / Speaker	Microphone Port	Headphone Port	HDMI Port	USB Port	WiFi Support	NFC Support	Bluetooth Support
1.		Fujifilm X-T10	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
2.		Sony A77	Y	stereo / mono	Y	-	mini	2.0	-	-	-
3.		Fujifilm X-A1	Y	stereo / mono	-	-	mini	2.0	Y	-	-
4.		Fujifilm X-A2	Y	stereo / mono	-	-	mini	2.0	Y	-	-
5.		Fujifilm X-A10	-	stereo / mono	-	-	micro	2.0	Y	-	-
6.		Fujifilm X-E1	Y	stereo / mono	Y	-	mini	2.0	-	-	-
7.		Fujifilm X-E2	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
8.		Fujifilm X-E2S	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
9.		Fujifilm X-M1	Y	stereo / mono	-	-	mini	2.0	Y	-	-
10.		Fujifilm X-Pro1	Y	stereo / mono	-	-	mini	2.0	-	-	-
11.		Fujifilm X-T20	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
12.		Fujifilm X70	Y	stereo / mono	Y	-	micro	2.0	Y	-	-
13.		Pentax K-3	Y	mono / mono	Y	Y	mini	3.0	-	-	-
14.		Sony A7 II	Y	stereo / mono	Y	Y	micro	2.0	Y	Y	-
15.		Sony A77 II	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
16.		Sony A99	Y	stereo / mono	Y	Y	mini	2.0	-	-	-
17.		Sony A6500	Y	stereo / mono	Y	-	micro	2.0	Y	Y	-

It is notable that the X-T10 offers wifi support, while the A77 does not. Wifi can be a very convenient means to transfer image data to an off-camera location.

Studio photographers will appreciate that the Sony A77 (unlike the X-T10) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Travel and landscape photographers will find it useful that the A77 has an internal geolocalization sensor and can record GPS coordinates in its EXIF data.

Both the X-T10 and the A77 have been discontinued, but can regularly be found used on ebay. The A77 was replaced by the Sony A77 II, while the X-T10 was followed by the Fujifilm X-T20. Further information on the features and operation of the X-T10 and A77 can be found, respectively, in the Fujifilm X-T10 Manual (free pdf) or the online Sony A77 Manual.

Review summary

So how do things add up? Which of the two cameras – the Fujifilm X-T10 or the Sony A77 – has the upper hand? Is one clearly better than the other? A synthesis of the relative strong points of each of the models is listed below.

Reasons to prefer the Fujifilm X-T10:

• Maximized detail: Lacks an anti-alias filter to exploit the sensor's full resolution potential.
• Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More compact: Is smaller (118x83mm vs 143x104mm) and thus needs less room in the bag.
• Less heavy: Is lighter (by 351g or 48 percent) and hence easier to carry around.
• More legacy lens friendly: Can take a broad range of non-native lenses via adapters.
• Easier file upload: Has wifi built in for automatic backup or image transfer to the web.
• More affordable: Was introduced into a lower priced category (43 percent cheaper at launch).
• More modern: Reflects 3 years and 8 months of technical progress since the A77 launch.

Arguments in favor of the Sony Alpha SLT-A77:

• More detail: Has more megapixels (24 vs 16MP), which boosts linear resolution by 23%.
• Better moiré control: Has an anti-alias filter to avoid artificial patterns to appear in images.
• Larger viewfinder image: Features a viewfinder with a higher magnification (0.73x vs 0.41x).
• Easier setting verification: Features a control panel on top to check shooting parameters.
• More flexible LCD: Has a full-flex screen for odd-angle shots in portrait or landscape orientation.
• More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
• Faster shutter: Has higher mechanical shutter speed (1/8000s vs 1/4000s) to freeze action.
• Faster burst: Shoots at higher frequency (12 vs 8 flaps/sec) to capture the decisive moment.
• Longer lasting: Gets more shots (470 versus 350) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Sharper images: Has stabilization technology built-in to reduce the impact of hand-shake.
• Easier geotagging: Features an internal GPS sensor to log localization data.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• More heavily discounted: Has been around for much longer (launched in August 2011).

If the number of relative strengths (bullet points above) is taken as a guide, the A77 is the clear winner of the contest (14 : 9 points). However, the relevance of individual strengths will vary across photographers, so that you might want to apply your own weighing scheme to the summary points when reflecting and deciding on a new camera. A professional sports photographer will view the differences between cameras in a way that diverges from the perspective of a street photog, and a person interested in family portraits has distinct needs from a landscape 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 Fujifilm X-T10 and the Sony A77 place the cameras among the top in their class? Find out in the latest Best Mirrorless Interchangeable Lens Camera and Best DSLR 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 X-T10 or the A77 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.

Expert Camera Reviews

		Camera   Model	AP   score	CL   score	DCW   score	DPR   score	EPZ   score	PB   score	Camera Launch	Launch Price (USD)	Street Price
1.		Fujifilm X-T10	4.5/5	+ +	..	80/100	5/5	5/5	May 2015	799	ebay.com
2.		Sony A77	5/5	91/100	..	81/100	..	5/5	Aug 2011	1,399	ebay.com
3.		Fujifilm X-A1	..	..	..	..	4.5/5	4.5/5	Sep 2013	399	ebay.com
4.		Fujifilm X-A2	4/5	..	..	..	4.5/5	4.5/5	Jan 2015	399	ebay.com
5.		Fujifilm X-A10	..	..	..	..	4/5	4/5	Dec 2016	399	ebay.com
6.		Fujifilm X-E1	4/5	+ +	..	79/100	4.5/5	4.5/5	Sep 2012	999	ebay.com
7.		Fujifilm X-E2	4/5	..	..	80/100	4.5/5	5/5	Oct 2013	999	ebay.com
8.		Fujifilm X-E2S	4.5/5	..	..	77/100	4.5/5	4.5/5	Jan 2016	699	ebay.com
9.		Fujifilm X-M1	3/5	+	..	77/100	4.5/5	4.5/5	Jun 2013	699	ebay.com
10.		Fujifilm X-Pro1	5/5	+ +	..	79/100	4.5/5	4.5/5	Jan 2012	1,699	ebay.com
11.		Fujifilm X-T20	5/5	+ +	5/5	82/100	5/5	4.5/5	Jan 2017	899	ebay.com
12.		Fujifilm X70	4.5/5	..	..	76/100	4.5/5	4.5/5	Jan 2016	799	ebay.com
13.		Pentax K-3	4/5	..	..	83/100	5/5	5/5	Oct 2013	1,299	ebay.com
14.		Sony A7 II	5/5	+	4/5	82/100	4.5/5	5/5	Nov 2014	1,999	ebay.com
15.		Sony A77 II	4/5	..	..	80/100	4.5/5	5/5	May 2014	1,199	ebay.com
16.		Sony A99	5/5	..	..	84/100	4.5/5	4.5/5	Sep 2012	2,799	ebay.com
17.		Sony A6500	5/5	+ +	3.5/5	85/100	4.5/5	4.5/5	Oct 2016	1,399	ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The above review scores should be interpreted with care, though. The ratings were established in reference to similarly priced cameras that were available in the market at the time of the review. Hence, a score should always be seen in the context of the camera's market launch date and its price, 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.

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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. There is also a set of direct links to comparison reviews that other users of the CAM-parator app explored.

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