A potelyt.com – Photography & Imaging Resources
ad

When you use links on apotelyt.com to buy products,
the site may earn a commission.

PW

Canon T4i vs Leica X2

The Canon EOS Rebel T4i (called Canon 650D in some regions) and the Leica X2 are two digital cameras that were announced, respectively, in June 2012 and May 2012. The T4i is a DSLR, while the X2 is a fixed lens compact. Both cameras are equipped with an APS-C sensor. The Canon has a resolution of 17.9 megapixels, whereas the Leica provides 16.1 MP.

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

Headline Specifications
Canon T4i
versus
Leica X2
Canon T4i   Leica X2
Digital single lens reflex Fixed lens compact camera
Canon EF mount lenses 36mm f/2.8
17.9 MP – APS-C sensor 16.1 MP – APS-C sensor
1080/30p Video no Video
ISO 100-12,800 (100 - 25,600) ISO 100-12,500
Optical viewfinder Viewfinder optional
3.0" LCD – 1040k dots 2.7" LCD – 230k dots
Swivel touchscreen Fixed screen (not touch-sensitive)
5 shutter flaps per second 5 shutter flaps per second
440 shots per battery charge450 shots per battery charge
133 x 100 x 79 mm, 575 g 124 x 69 x 52 mm, 345 g
logo
Check T4i offers at
ebay.com
logo
Check X2 offers at
ebay.com

Going beyond this snapshot of core features and characteristics, what are the differences between the Canon EOS Rebel T4i and the Leica X2? 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.

ad

Body comparison

The side-by-side display below illustrates the physical size and weight of the Canon T4i and the Leica X2. 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.

The X2 can be obtained in two different colors (black, silver), while the T4i is only available in black.

Size Canon T4i vs Leica X2
Compare T4i versus X2 top
Comparison T4i or X2 rear

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Leica X2 is considerably smaller (36 percent) than the Canon T4i. In this context, it is worth noting that neither the T4i nor the X2 are weather-sealed.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the X2 has a lens built in, whereas the T4i is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup. You can compare the optics available for the T4i and their specifications in the Canon EF Lens Catalog.

Concerning battery life, the T4i gets 440 shots out of its Canon LP-E8 battery, while the X2 can take 450 images on a single charge of its Leica BP-DC8 power pack.

The adjacent table lists the principal physical characteristics of the two cameras alongside a wider set of alternatives. 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.

scroll hint
Body Specifications
  empty Camera
Model
Camera
Width
Camera
Height
Camera
Depth
Camera
Weight
Battery
Life
Weather
Sealing
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon T4i 133 mm 100 mm 79 mm 575 g 440 n Jun 2012 849ebay.com
2.
 
Leica X2 124 mm 69 mm 52 mm 345 g 450 n May 2012 1,995ebay.com
3.
 
Canon Rebel 142 mm 99 mm 72 mm 649 g 400 n Aug 2003 899ebay.com
4.
 
Canon T1i 129 mm 98 mm 62 mm 520 g 400 n Mar 2009 799ebay.com
5.
 
Canon T2i 129 mm 98 mm 62 mm 530 g 440 n Feb 2010 699ebay.com
6.
 
Canon T3i 133 mm 100 mm 80 mm 570 g 440 n Feb 2011 599ebay.com
7.
 
Canon T5 130 mm 100 mm 78 mm 480 g 500 n Feb 2014 449ebay.com
8.
 
Canon T5i 133 mm 100 mm 79 mm 580 g 440 n Mar 2013 649ebay.com
9.
 
Canon T6s 132 mm 101 mm 78 mm 565 g 440 n Feb 2015 649ebay.com
10.
 
Canon XSi 129 mm 98 mm 62 mm 524 g 500 n Jan 2008 799ebay.com
11.
 
Canon XT 127 mm 94 mm 64 mm 540 g 400 n Feb 2005 899ebay.com
12.
 
Canon XTi 127 mm 84 mm 65 mm 556 g 370 n Aug 2006 799ebay.com
13.
 
Fujifilm X-E2 129 mm 75 mm 37 mm 350 g 350 n Oct 2013 999ebay.com
14.
 
Fujifilm X100S 127 mm 74 mm 54 mm 445 g 330 n Jan 2013 1,299ebay.com
15.
 
Leica X1 124 mm 60 mm 32 mm 306 g 260 n Sep 2009 1,995ebay.com
16.
 
Leica X Typ 113 133 mm 73 mm 78 mm 486 g 350 n Sep 2014 2,295ebay.com
17.
 
Nikon Coolpix A 111 mm 64 mm 40 mm 299 g 230 n Mar 2013 1,099ebay.com
Note: Measurements and pricing do not include easily detachable parts, such as add-on or interchangeable lenses or optional viewfinders.

Any camera decision will obviously take relative prices into account. The retail prices at the time of the camera’s release place the model in the market relative to other models in the producer’s line-up and the competition. 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.

Sensor comparison

The size of the imaging sensor is a crucial determinant of image quality. A large sensor will generally have larger individual pixels that offer better low-light sensitivity, provide wider dynamic range, and have richer color-depth than smaller pixels in a sensor of the same technological generation. Furthermore, a large sensor camera will give the photographer more possibilities to use shallow depth-of-field in order to isolate a subject from the background. On the downside, larger sensors tend to be associated with larger, more expensive camera bodies and lenses.

Both cameras under consideration feature an APS-C sensor, but their sensors differ slightly in size. The sensor area in the X2 is 11 percent bigger. As a result of these sensor size differences, the cameras have format factors, respectively, of 1.6 (T4i) and 1.5. Both cameras have a native aspect ratio (sensor width to sensor height) of 3:2.

Canon T4i and Leica X2 sensor measures

Despite having a smaller sensor, the Canon T4i offers a higher resolution of 17.9 megapixels, compared with 16.1 MP of the Leica X2. 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 4.31μm versus 4.79μm for the X2). It is noteworthy in this context that the two cameras were released in close succession, so that their sensors are from the same technological generation.

The resolution advantage of the Canon T4i implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the T4i for good quality output (200 dots per inch) amounts to 25.9 x 17.3 inches or 65.8 x 43.9 cm, for very good quality (250 dpi) 20.7 x 13.8 inches or 52.7 x 35.1 cm, and for excellent quality (300 dpi) 17.3 x 11.5 inches or 43.9 x 29.3 cm. The corresponding values for the Leica X2 are 24.6 x 16.3 inches or 62.6 x 41.5 cm for good quality, 19.7 x 13.1 inches or 50.1 x 33.2 cm for very good quality, and 16.4 x 10.9 inches or 41.7 x 27.6 cm for excellent quality prints.

The T4i has on-sensor phase detect pixels, which results in fast and reliable autofocus acquisition even during live view operation.

The Canon EOS Rebel T4i has a native sensitivity range from ISO 100 to ISO 12800, which can be extended to ISO 100-25600. The corresponding ISO settings for the Leica X2 are ISO 100 to ISO 12500 (no boost).

Technology-wise, both cameras are equipped with CMOS (Complementary Metal–Oxide–Semiconductor) sensors. Both cameras use a Bayer filter for capturing RGB colors on a square grid of photosensors. This arrangement is found in most digital cameras.

T4i versus X2 MP

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 adjacent table reports on the physical sensor characteristics and the outcomes of the DXO sensor quality tests for a sample of comparator-cameras.

scroll hint
Sensor Characteristics
  empty Camera
Model
Sensor
Class
Resolution
(MP)
Horiz.
Pixels
Vert.
Pixels
Video
Format
DXO
Portrait
DXO
Landscape
DXO
Sports
DXO
Overall
1.
 
Canon T4i APS-C 17.9 5184 34561080/30p21.711.272262
2.
 
Leica X2 APS-C 16.1 4928 3264none23.212.4127574
3.
 
Canon Rebel APS-C 6.3 3072 2048none21.010.854455
4.
 
Canon T1i APS-C 15.1 4752 31681080/20p21.711.566363
5.
 
Canon T2i APS-C 17.9 5184 34561080/30p22.111.578466
6.
 
Canon T3i APS-C 17.9 5184 34561080/30p22.111.579365
7.
 
Canon T5 APS-C 17.9 5184 34561080/30p21.911.372463
8.
 
Canon T5i APS-C 17.9 5184 34561080/30p21.711.268161
9.
 
Canon T6s APS-C 24.0 6000 40001080/30p22.612.091570
10.
 
Canon XSi APS-C 12.2 4272 2848none21.910.869261
11.
 
Canon XT APS-C 8.0 3456 2304none21.810.863760
12.
 
Canon XTi APS-C 10.1 3888 2592none22.111.066462
13.
 
Fujifilm X-E2 APS-C 16.0 4896 32641080/60p23.412.6140077
14.
 
Fujifilm X100S APS-C 16.0 4896 32641080/60p23.312.5132975
15.
 
Leica X1 APS-C 12.2 4272 2856none22.611.8103769
16.
 
Leica X Typ 113 APS-C 16.1 4928 32641080/30p23.612.8149178
17.
 
Nikon Coolpix A APS-C 16.1 4928 32641080/30p23.413.8116480
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 T4i indeed provides movie recording capabilities, while the X2 does not. The highest resolution format that the T4i can use is 1080/30p.

ad

Feature comparison

Apart from body and sensor, cameras can and do differ across a variety of features. For example, the T4i has an optical viewfinder, which can be very useful when shooting in bright sunlight. In contrast, the X2 relies on live view and the rear LCD for framing. That said, the X2 can be equipped with an optional viewfinder – the EVF 2. The adjacent table lists some of the other core features of the Canon T4i and Leica X2 along with similar information for a selection of comparators.

scroll hint
Core Features
  empty 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 T4ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
2.
 
Leica X2optional n2.7 / 230 fixed n 1/2000s 5.0/s Y n
3.
 
Canon Rebeloptical n1.8 / 118 fixed n 1/4000s 2.5/s Y n
4.
 
Canon T1ioptical n3.0 / 920 fixed n 1/4000s 3.4/s Y n
5.
 
Canon T2ioptical n3.0 / 1040 fixed n 1/4000s 3.7/s Y n
6.
 
Canon T3ioptical n3.0 / 1040 swivel n 1/4000s 3.7/s Y n
7.
 
Canon T5optical n3.0 / 460 fixed n 1/4000s 3.0/s Y n
8.
 
Canon T5ioptical n3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
9.
 
Canon T6soptical Y3.0 / 1040 swivel Y 1/4000s 5.0/s Y n
10.
 
Canon XSioptical n3.0 / 230 fixed n 1/4000s 3.5/s Y n
11.
 
Canon XToptical n1.8 / 115 fixed n 1/4000s 3.0/s Y n
12.
 
Canon XTioptical n2.5 / 230 fixed n 1/4000s 3.0/s Y n
13.
 
Fujifilm X-E22360 n3.0 / 1040 fixed n 1/4000s 7.0/s Y n
14.
 
Fujifilm X100S2360 n2.8 / 460 fixed n 1/4000s 6.0/s Y n
15.
 
Leica X1none n2.7 / 230 fixed n 1/2000s 3.0/s Y n
16.
 
Leica X Typ 113optional n3.0 / 920 fixed n 1/2000s 5.0/s Y n
17.
 
Nikon Coolpix Aoptional n3.0 / 921 fixed n 1/2000s 4.0/s Y n
Note: *) Information refers to the mechanical shutter, unless the camera only has an electronic one.

One differentiating feature between the two cameras concerns the touch sensitivity of the rear screen. The T4i has a touchscreen, while the X2 has a conventional panel. Touch control can be particularly helpful, for example, for setting the focus point.

The T4i has an articulated LCD that can be turned to be front-facing. This characteristic will be appreciated by vloggers and photographers who are interested in snapping selfies. In contrast, the X2 does not have a selfie-screen.

The T4i writes its imaging data to SDXC cards, while the X2 uses SDHC cards. The T4i supports UHS-I cards (Ultra High Speed data transfer of up to 104 MB/s), while the X2 cannot take advantage of Ultra High Speed SD cards.

ad

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 T4i and Leica X2 and, in particular, the interfaces the cameras (and selected comparators) provide for accessory control and data transfer.

scroll hint
Input-Output Connections
  empty Camera
Model
Hotshoe
Port
Internal
Mic / Speaker
Microphone
Port
Headphone
Port
HDMI
Port
USB
Port
WiFi
Support
NFC
Support
Bluetooth
Support
1.
 
Canon T4iYstereo / monoY-mini2.0---
2.
 
Leica X2Y- / ---mini2.0---
3.
 
Canon RebelY- / ----1.1---
4.
 
Canon T1iYmono / mono--mini2.0---
5.
 
Canon T2iYstereo / -Y-mini2.0---
6.
 
Canon T3iYmono / monoY-mini2.0---
7.
 
Canon T5Ymono / mono--mini2.0---
8.
 
Canon T5iYstereo / monoY-mini2.0---
9.
 
Canon T6sYstereo / monoY-mini2.0YY-
10.
 
Canon XSiY- / ---mini2.0---
11.
 
Canon XTY- / ----2.0---
12.
 
Canon XTiY- / ----2.0---
13.
 
Fujifilm X-E2Ystereo / monoY-micro2.0Y--
14.
 
Fujifilm X100SYstereo / mono--micro2.0---
15.
 
Leica X1Y- / ---mini2.0---
16.
 
Leica X Typ 113Ystereo / mono--mini2.0---
17.
 
Nikon Coolpix AYstereo / mono---2.0---

Both the T4i and the X2 have been discontinued, but can regularly be found used on ebay. The T4i was replaced by the Canon T5i, while the X2 does not have a direct successor. Further information on the features and operation of the T4i and X2 can be found, respectively, in the Canon T4i Manual (free pdf) or the online Leica X2 Manual.

ad

Review summary

So how do things add up? Which of the two cameras – the Canon T4i or the Leica X2 – 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.

ilogo

Arguments in favor of the Canon EOS Rebel T4i:

  • More detail: Offers more megapixels (17.9 vs 16.1MP) with a 5% higher linear resolution.
  • Broader imaging potential: Can record not only still images but also 1080/30p movies.
  • Better live-view autofocus: Features on-sensor phase-detection for more confident autofocus.
  • Easier framing: Has an optical viewfinder for image composition and settings control.
  • Larger screen: Has a bigger rear LCD (3.0" vs 2.7") for image review and settings control.
  • More detailed LCD: Has a higher resolution rear screen (1040k vs 230k dots).
  • More flexible LCD: Has a swivel screen for odd-angle shots in portrait or landscape orientation.
  • Fewer buttons to press: Is equipped with a touch-sensitive rear screen to facilitate handling.
  • More selfie-friendly: Has an articulated screen that can be turned to be front-facing.
  • Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
  • More flexible: Can take a variety of interchangeable lenses, including specialty optics.
  • Faster buffer clearing: Has an SD card interface that supports the UHS-I standard.

ilogo

Advantages of the Leica X2:

  • Ready to shoot: Comes with an integrated lens, while the T4i requires a separate lens.
  • More compact: Is smaller (124x69mm vs 133x100mm) and will fit more readily into a bag.
  • Less heavy: Has a lower weight even though it has a lens built in (unlike the T4i).
  • More prestigious: Has the Leica luxury appeal, which ensures a high resale value.

If the count of individual advantages (bullet points above) is taken as a guide, the T4i is the clear winner of the match-up (12 : 4 points). However, the relative importance of the various individual camera aspects will vary according to personal preferences and needs, so that you might like to apply corresponding weights to the particular features before making a decision on a new camera. A professional wedding photographer will view the differences between cameras in a way that diverges from the perspective of a travel photog, and a person interested in cityscapes has distinct needs from a macro shooter. Hence, the decision which camera is best and worth buying is often a very personal one.

T4i 12:04 X2

How about other alternatives? Do the specifications of the Canon T4i and the Leica X2 place the cameras among the top in their class? Find out in the latest Best DSLR Camera and Best Prime Lens Compact Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the specs-based evaluation of cameras can be instructive in revealing their potential as photographic tools, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the T4i or the X2. User reviews, such as those found at amazon, can sometimes inform about these issues, but such feedback is often incomplete, inconsistent, and biased.

Expert reviews

This is why expert reviews are important. The table below provides a synthesis of the camera assessments of some of the best known photo-gear 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.

scroll hint
Expert Camera Reviews
  empty  Camera 
 Model 
 AP 
 score 
 CL 
 score 
 DCW 
 score 
 DPR 
 score 
 EPZ 
 score 
 PB 
 score 
Camera
Launch
Launch
Price (USD)
Street
Price
1.
 
Canon T4i4/5+ +..77/1004.5/54.5/5 Jun 2012 849ebay.com
2.
 
Leica X23/5......3/54/5 May 2012 1,995ebay.com
3.
 
Canon Rebel......+ +.... Aug 2003 899ebay.com
4.
 
Canon T1i..+ +..74/1004.5/54.5/5 Mar 2009 799ebay.com
5.
 
Canon T2i..+ +..77/1004/54.5/5 Feb 2010 699ebay.com
6.
 
Canon T3i3/5o..77/1004.5/54.5/5 Feb 2011 599ebay.com
7.
 
Canon T53/5+....4/54.5/5 Feb 2014 449ebay.com
8.
 
Canon T5i......76/1004.5/54.5/5 Mar 2013 649ebay.com
9.
 
Canon T6s5/5+..77/1004.5/54.5/5 Feb 2015 649ebay.com
10.
 
Canon XSi..+ +..+ +4/54.5/5 Jan 2008 799ebay.com
11.
 
Canon XT..80/100..+ +o.. Feb 2005 899ebay.com
12.
 
Canon XTi..+ +..+ +o4/5 Aug 2006 799ebay.com
13.
 
Fujifilm X-E24/5....80/1004.5/55/5 Oct 2013 999ebay.com
14.
 
Fujifilm X100S5/5+ +..81/1004.5/55/5 Jan 2013 1,299ebay.com
15.
 
Leica X13/5....+..4/5 Sep 2009 1,995ebay.com
16.
 
Leica X Typ 1133.5/5......3.5/54/5 Sep 2014 2,295ebay.com
17.
 
Nikon Coolpix A4/5+..75/1004/54/5 Mar 2013 1,099ebay.com
Note: (+ +) highly recommended; (+) recommended; (o) reviewed; (..) not available.

The review scores listed above should be treated with care, though. The assessments were made in relation to similar cameras of the same technological generation. 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. It should also be noted that some of the review sites have over time altered the way they render their verdicts.

logo
Check T4i offers at
ebay.com
logo
Check X2 offers at
ebay.com

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 your choice using the following search menu. As an alternative, you can also directly jump to any one of the listed comparisons that were previously generated by the CAM-parator tool.

~
    loader
    ad

    Specifications: Canon T4i vs Leica X2

    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 Specifications
    Camera Model Canon T4i Leica X2
    Camera Type Digital single lens reflex Fixed lens compact camera
    Camera Lens Canon EF mount lenses 36mm f/2.8
    Launch Date June 2012 May 2012
    Launch Price USD 849 USD 1,995
    Sensor Specs Canon T4i Leica X2
    Sensor Technology CMOS CMOS
    Sensor Format APS-C Sensor APS-C Sensor
    Sensor Size 22.3 x 14.9 mm 23.7 x 15.6 mm
    Sensor Area 332.27 mm2 369.72 mm2
    Sensor Diagonal 26.8 mm 28.4 mm
    Crop Factor 1.6x 1.5x
    Sensor Resolution 17.9 Megapixels 16.1 Megapixels
    Image Resolution 5184 x 3456 pixels 4928 x 3264 pixels
    Pixel Pitch 4.31 μm 4.79 μm
    Pixel Density 5.39 MP/cm2 4.35 MP/cm2
    Moiré control Anti-Alias filter Anti-Alias filter
    Movie Capability 1080/30p Video no Video
    ISO Setting 100 - 12,800 ISO 100 - 12,500 ISO
    ISO Boost 100 - 25,600 ISO no Enhancement
    DXO Sensor Quality (score) 62 ..
    DXO Color Depth (bits) 21.7 ..
    DXO Dynamic Range (EV) 11.2 ..
    DXO Low Light (ISO) 722 ..
    Screen Specs Canon T4i Leica X2
    Viewfinder Type Optical viewfinder Viewfinder optional
    Viewfinder Field of View 95%
    Viewfinder Magnification 0.53x
    LCD Framing Live View
    Rear LCD Size 3.0inch 2.7inch
    LCD Resolution 1040k dots 230k dots
    LCD Attachment Swivel screen Fixed screen
    Touch Input Touchscreen no Touchscreen
    Shooting Specs Canon T4i Leica X2
    Focus System Phase-detect AF Contrast-detect AF
    Continuous Shooting 5 shutter flaps/s 5 shutter flaps/s
    Fill Flash Built-in Flash Built-in Flash
    Storage Medium SDXC cards SDHC cards
    Single or Dual Card Slots Single card slot Single card slot
    UHS card support UHS-I no
    Connectivity Specs Canon T4i Leica X2
    External Flash Hotshoe Hotshoe
    USB Connector USB 2.0 USB 2.0
    HDMI Port mini HDMI mini HDMI
    Microphone Port External MIC port no MIC socket
    Wifi Support no Wifi no Wifi
    Body Specs Canon T4i Leica X2
    Battery Type Canon LP-E8 Leica BP-DC8
    Battery Life (CIPA)440 shots per charge450 shots per charge
    Body Dimensions 133 x 100 x 79 mm
    (5.2 x 3.9 x 3.1 in)
    124 x 69 x 52 mm
    (4.9 x 2.7 x 2.0 in)
    Camera Weight 575 g (20.3 oz) 345 g (12.2 oz)
    logo
    Check T4i offers at
    ebay.com
    logo
    Check X2 offers at
    ebay.com

    Did you notice an error on this page? If so, please get in touch, so that we can correct the information.

    You are here Home  »  CAM-parator  »  Canon T4i vs Leica X2