Panasonic FZ150 vs Pentax 645D

The Panasonic Lumix DMC-FZ150 and the Pentax 645D are two digital cameras that were revealed to the public, respectively, in August 2011 and March 2010. The FZ150 is a fixed lens compact, while the 645D is a DSLR. The cameras are based on a 1/2.3-inch (FZ150) and a medium format (645D) sensor. The Panasonic has a resolution of 12 megapixels, whereas the Pentax provides 39.5 MP.

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

Headline Specifications

Panasonic FZ150		Pentax 645D
Fixed lens compact camera		Digital single lens reflex
25-600mm f/2.8-5.2		Pentax 645 mount lenses
12 MP – 1/2.3" sensor		39.5 MP – Medium Format sensor
1080/60p Video		no Video
ISO 100-3,200 (100 - 6,400)		ISO 100-1,600
Electronic viewfinder (202k dots)		Optical viewfinder
3.0" LCD – 460k dots		3.0" LCD – 921k dots
Swivel screen (not touch-sensitive)		Fixed screen (not touch-sensitive)
12 shutter flaps per second		1.1 shutter flaps per second
not weather sealed		Weathersealed body
410 shots per battery charge		800 shots per battery charge
124 x 82 x 92 mm, 528 g		156 x 117 x 119 mm, 1480 g

Check FZ150 offers at
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Check 645D offers at
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Going beyond this snapshot of core features and characteristics, what are the differences between the Panasonic Lumix DMC-FZ150 and the Pentax 645D? 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 Panasonic FZ150 and the Pentax 645D is provided in the side-by-side display below. 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.

If the front view area (width x height) of the cameras is taken as an aggregate measure of their size, the Pentax 645D is considerably larger (80 percent) than the Panasonic FZ150. It is noteworthy in this context that the 645D is splash and dust-proof, while the FZ150 does not feature any corresponding weather-sealing.

The above size and weight comparisons are to some extent incomplete and possibly misleading, as the FZ150 has a lens built in, whereas the 645D is an interchangeable lens camera that requires a separate lens. Attaching the latter will add extra weight and bulk to the setup.

Concerning battery life, the FZ150 gets 410 shots out of its Panasonic DMW-BMB9 battery, while the 645D can take 800 images on a single charge of its Pentax D-LI90 power pack.

The following table provides a synthesis of the main physical specifications of the two cameras and other similar ones. 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.		Panasonic FZ150	124 mm	82 mm	92 mm	528 g	410	n	Aug 2011	499	ebay.com
2.		Pentax 645D	156 mm	117 mm	119 mm	1480 g	800	Y	Mar 2010	9,995	ebay.com
3.		Canon 1D Mark IV	156 mm	157 mm	80 mm	1230 g	1500	Y	Oct 2009	4,999	ebay.com
4.		Canon 1D X	158 mm	168 mm	83 mm	1551 g	1120	Y	Oct 2011	6,799	ebay.com
5.		Canon SX30	123 mm	92 mm	108 mm	601 g	370	n	Sep 2010	429	ebay.com
6.		Canon SX40	123 mm	92 mm	108 mm	600 g	380	n	Sep 2011	429	ebay.com
7.		Canon SX50	123 mm	87 mm	106 mm	595 g	315	n	Sep 2012	429	ebay.com
8.		Canon SX60	128 mm	93 mm	114 mm	650 g	340	n	Sep 2014	549	ebay.com
9.		Leica S Typ 006	160 mm	120 mm	80 mm	1260 g	..	Y	Sep 2012	21,950	ebay.com
10.		Leica V-LUX 4	125 mm	87 mm	110 mm	588 g	540	n	Sep 2012	949	ebay.com
11.		Nikon D3S	160 mm	157 mm	88 mm	1240 g	4200	Y	Oct 2009	5,199	ebay.com
12.		Panasonic FZ100	124 mm	82 mm	92 mm	540 g	410	n	Jul 2010	499	ebay.com
13.		Panasonic FZ200	125 mm	87 mm	110 mm	588 g	540	n	Jul 2012	599	ebay.com
14.		Panasonic LX5	110 mm	65 mm	43 mm	271 g	400	n	Jul 2010	499	ebay.com
15.		Panasonic LX7	111 mm	68 mm	46 mm	298 g	330	n	Jul 2012	499	ebay.com
16.		Panasonic ZS70	112 mm	67 mm	41 mm	322 g	380	n	Apr 2017	449	ebay.com
17.		Pentax 645Z	156 mm	117 mm	123 mm	1550 g	650	Y	Apr 2014	8,499	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 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. The FZ150 was launched at a lower price than the 645D, despite having a lens built in. 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 sensor inside a digital camera is one of the key determinants of image quality. All other things equal, a large sensor will have larger individual pixel-units that offer better low-light sensitivity, wider dynamic range, and richer color-depth than smaller pixels in a sensor of the same technological generation. Moreover, a large sensor camera will give the photographer more control over depth-of-field in the image and, thus, the ability to better isolate a subject from the 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 Panasonic FZ150 features a 1/2.3-inch sensor and the Pentax 645D a medium format sensor. The sensor area in the 645D is 5086 percent bigger. As a result of these sensor size differences, the cameras have a format factor of, respectively, 5.6 and 0.79. Both cameras feature a native aspect ratio (sensor width to sensor height) of 4:3.

With 39.5MP, the 645D offers a higher resolution than the FZ150 (12MP), but the 645D nevertheless has larger individual pixels (pixel pitch of 6.06μm versus 1.53μm for the FZ150) due to its larger sensor. However, the FZ150 is a somewhat more recent model (by 1 year and 5 months) than the 645D, and its sensor might have benefitted from technological advances during this time that enhance the light gathering capacity of its pixel-units. Coming back to sensor resolution, it should be mentioned that neither of the two cameras has an anti-alias filter installed, so they are able to capture all the detail the sensor resolves.

The resolution advantage of the Pentax 645D implies greater flexibility for cropping images or the possibility to print larger pictures. The maximum print size of the 645D for good quality output (200 dots per inch) amounts to 36.3 x 27.2 inches or 92.3 x 69.1 cm, for very good quality (250 dpi) 29.1 x 21.8 inches or 73.8 x 55.3 cm, and for excellent quality (300 dpi) 24.2 x 18.1 inches or 61.5 x 46.1 cm. The corresponding values for the Panasonic FZ150 are 20 x 15 inches or 50.8 x 38.1 cm for good quality, 16 x 12 inches or 40.6 x 30.5 cm for very good quality, and 13.3 x 10 inches or 33.9 x 25.4 cm for excellent quality prints.

The Panasonic Lumix DMC-FZ150 has a native sensitivity range from ISO 100 to ISO 3200, which can be extended to ISO 100-6400. The corresponding ISO settings for the Pentax 645D are ISO 100 to ISO 1600 (no boost).

In terms of underlying technology, the FZ150 is build around a CMOS sensor, while the 645D uses a CCD 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.

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"). Of the two cameras under consideration, the 645D offers substantially better image quality than the FZ150 (overall score 42 points higher). The advantage is based on 5.2 bits higher color depth, 1.7 EV in additional dynamic range, and 3.3 stops in additional low light sensitivity. The following table provides an overview of the physical sensor characteristics, as well as the sensor quality measurements for a selection of comparators.

Sensor Characteristics

		Camera Model	Sensor Class	Resolution (MP)	Horiz. Pixels	Vert. Pixels	Video Format	DXO Portrait	DXO Landscape	DXO Sports	DXO Overall
1.		Panasonic FZ150	1/2.3	12.0	4000	3000	1080/60p	19.4	10.9	132	40
2.		Pentax 645D	Medium Format	39.5	7264	5440	none	24.6	12.6	1262	82
3.		Canon 1D Mark IV	APS-H	16.0	4896	3264	1080/30p	22.8	12.0	1320	74
4.		Canon 1D X	Full Frame	17.9	5184	3456	1080/30p	23.8	11.8	2786	82
5.		Canon SX30	1/2.3	14.0	4320	3240	720/30p	19.4	10.7	320	39
6.		Canon SX40	1/2.3	12.0	4000	3000	1080/24p	19.6	10.9	409	41
7.		Canon SX50	1/2.3	12.0	4000	3000	1080/24p	20.3	11.2	179	47
8.		Canon SX60	1/2.3	14.2	4608	3072	1080/60p	19.2	10.8	127	39
9.		Leica S Typ 006	Medium Format	37.5	7500	5000	none	23.9	12.2	824	76
10.		Leica V-LUX 4	1/2.3	12.0	4000	3000	1080/60p	19.8	11.1	501	43
11.		Nikon D3S	Full Frame	12.1	4256	2832	720/24p	23.5	12.0	3253	82
12.		Panasonic FZ100	1/2.3	14.0	4320	3240	1080/60i	19.4	10.7	306	39
13.		Panasonic FZ200	1/2.3	12.0	4000	3000	1080/60p	19.1	10.8	114	37
14.		Panasonic LX5	1/1.7	10.0	3648	2736	720/60p	19.6	10.8	132	41
15.		Panasonic LX7	1/1.7	10.0	3648	2736	1080/60p	20.7	11.7	147	50
16.		Panasonic ZS70	1/2.3	20.2	5184	3888	4K/30p	19.1	10.6	106	36
17.		Pentax 645Z	Medium Format	51.1	8256	6192	1080/60i	26.0	14.7	4505	101
Note: DXO values in italics represent estimates based on sensor size and age.

Many modern cameras are not only capable of taking still images, but also of capturing video footage. The FZ150 indeed provides movie recording capabilities, while the 645D does not. The highest resolution format that the FZ150 can use is 1080/60p.

Feature comparison

Beyond body and sensor, cameras can and do differ across a range of features. For example, the FZ150 has an electronic viewfinder (202k dots), while the 645D has an optical one. Both systems have their advantages, with the electronic viewfinder making it possible to project supplementary shooting information into the framing view, whereas the optical viewfinder offers lag-free viewing and a very clear framing image. The table below summarizes some of the other core capabilities of the Panasonic FZ150 and Pentax 645D in connection with corresponding information for a sample of similar 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.		Panasonic FZ150	202	n	3.0 / 460	swivel	n	1/2000s	12.0/s	Y	Y
2.		Pentax 645D	optical	Y	3.0 / 921	fixed	n	1/4000s	1.1/s	n	n
3.		Canon 1D Mark IV	optical	Y	3.0 / 920	fixed	n	1/8000s	10.0/s	n	n
4.		Canon 1D X	optical	Y	3.2 / 1040	fixed	n	1/8000s	14.0/s	n	n
5.		Canon SX30	202	n	2.7 / 230	swivel	n	1/3200s	0.6/s	Y	Y
6.		Canon SX40	202	n	2.7 / 230	swivel	n	1/3200s	10.3/s	Y	Y
7.		Canon SX50	202	n	3.0 / 461	swivel	n	1/2000s	2.2/s	Y	Y
8.		Canon SX60	922	n	3.0 / 922	swivel	n	1/2000s	6.4/s	Y	Y
9.		Leica S Typ 006	optical	Y	3.0 / 922	fixed	n	1/4000s	1.5/s	n	n
10.		Leica V-LUX 4	1312	n	3.0 / 460	swivel	n	1/4000s	12.0/s	Y	Y
11.		Nikon D3S	optical	Y	3.0 / 921	fixed	n	1/8000s	11.0/s	n	n
12.		Panasonic FZ100	202	n	3.0 / 460	swivel	n	1/2000s	11.0/s	Y	Y
13.		Panasonic FZ200	1312	n	3.0 / 460	swivel	n	1/4000s	12.0/s	Y	Y
14.		Panasonic LX5	optional	n	3.0 / 460	fixed	n	1/4000s	2.5/s	Y	Y
15.		Panasonic LX7	optional	n	3.0 / 920	fixed	n	1/4000s	11.0/s	Y	Y
16.		Panasonic ZS70	1166	n	3.0 / 1040	tilting	Y	1/2000s	10.0/s	Y	Y
17.		Pentax 645Z	optical	Y	3.2 / 1037	tilting	n	1/4000s	3.0/s	n	n
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 FZ150 has one, while the 645D does not. While the built-in flash of the FZ150 is not very powerful, it can at times be useful as a fill-in light.

The Pentax 645D 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.

Concerning the storage of imaging data, both the FZ150 and the 645D write their files to SDXC cards. The 645D features dual card slots, which can be very useful in case a memory card fails. In contrast, the FZ150 only has one slot.

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 Panasonic Lumix DMC-FZ150 and Pentax 645D 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.		Panasonic FZ150	Y	stereo / -	-	-	mini	2.0	-	-	-
2.		Pentax 645D	Y	stereo / -	-	-	-	2.0	-	-	-
3.		Canon 1D Mark IV	Y	stereo / -	Y	-	mini	2.0	-	-	-
4.		Canon 1D X	Y	mono / -	Y	-	mini	2.0	-	-	-
5.		Canon SX30	Y	stereo / mono	-	-	YES	2.0	-	-	-
6.		Canon SX40	Y	stereo / mono	-	-	YES	2.0	-	-	-
7.		Canon SX50	Y	stereo / mono	-	-	mini	2.0	-	-	-
8.		Canon SX60	Y	stereo / mono	Y	-	mini	2.0	Y	Y	-
9.		Leica S Typ 006	Y	- / -	-	-	mini	2.0	-	-	-
10.		Leica V-LUX 4	Y	stereo / mono	Y	-	mini	2.0	-	-	-
11.		Nikon D3S	Y	stereo / -	-	-	mini	2.0	-	-	-
12.		Panasonic FZ100	Y	stereo / mono	-	-	mini	2.0	-	-	-
13.		Panasonic FZ200	Y	stereo / mono	Y	-	mini	2.0	-	-	-
14.		Panasonic LX5	Y	mono / mono	-	-	mini	2.0	-	-	-
15.		Panasonic LX7	Y	stereo / mono	-	-	mini	2.0	-	-	-
16.		Panasonic ZS70	-	stereo / mono	-	-	micro	2.0	Y	-	-
17.		Pentax 645Z	Y	stereo / mono	Y	-	mini	3.0	-	-	-

Studio photographers will appreciate that the Pentax 645D (unlike the FZ150) features a PC Sync socket, so that professional strobe lights can be controlled by the camera.

Both the FZ150 and the 645D have been discontinued, but can regularly be found used on ebay. The 645D was replaced by the Pentax 645Z, while the FZ150 was followed by the Panasonic FZ200. Further information on the features and operation of the FZ150 and 645D can be found, respectively, in the Panasonic FZ150 Manual (free pdf) or the online Pentax 645D Manual.

Review summary

So what is the bottom line? Is there a clear favorite between the Panasonic FZ150 and the Pentax 645D? Which camera is better? The listing below highlights the relative strengths of the two models.

Reasons to prefer the Panasonic Lumix DMC-FZ150:

• Broader imaging potential: Can record not only still images but also 1080/60p movies.
• More framing info: Has an electronic viewfinder that displays shooting data.
• More flexible LCD: Has a swivel 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 burst: Shoots at higher frequency (12 vs 1.1 flaps/sec) to capture the decisive moment.
• Ready to shoot: Comes with a built-in lens, while the 645D requires a separate lens.
• More compact: Is smaller (124x82mm vs 156x117mm) and thus needs less room in the bag.
• Less heavy: Is lighter even though it comes with a built-in lens (unlike the 645D).
• Sharper images: Has hand-shake reducing image stabilization built-in.
• Easier fill-in: Is equipped with a small onboard flash to brighten deep shadow areas.
• More affordable: Was introduced at a lower price, despite coming with a built-in lens.
• More modern: Is somewhat more recent (announced 1 year and 5 months after the 645D).

Advantages of the Pentax 645D:

• More detail: Has more megapixels (39.5 vs 12MP), which boosts linear resolution by 82%.
• Better image quality: Scores substantially higher (42 points) in the DXO overall evaluation.
• Richer colors: Generates noticeably more natural colors (5.2 bits more color depth).
• More dynamic range: Captures a broader range of light and dark details (1.7 EV of extra DR).
• Better low-light sensitivity: Can shoot in dim conditions (3.3 stops ISO advantage).
• Brighter framing: Features an optical viewfinder for clear, lag-free composition.
• Easier setting verification: Features a control panel on top to check shooting parameters.
• More detailed LCD: Has a higher resolution rear screen (921k vs 460k dots).
• Faster shutter: Has higher mechanical shutter speed (1/4000s vs 1/2000s) to freeze action.
• Easier time-lapse photography: Has an intervalometer built-in for low frequency shooting.
• More flexible: Makes it possible to change lenses and thus to use specialty optics.
• Longer lasting: Gets more shots (800 versus 410) out of a single battery charge.
• Better sealing: Is splash and dust sealed for shooting in inclement weather conditions.
• Better studio light control: Has a PC Sync socket to connect to professional strobe lights.
• Greater peace of mind: Features a second card slot as a backup in case of memory card failure.
• More heavily discounted: Has been on the market for longer (launched in March 2010).

If the number of relative strengths (bullet points above) is taken as a guide, the 645D is the clear winner of the contest (16 : 12 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 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.

How about other alternatives? Do the specifications of the Panasonic FZ150 and the Pentax 645D place the cameras among the top in their class? Find out in the latest Best Superzoom Camera and Best DSLR Camera listings whether the two cameras rank among the cream of the crop.

In any case, while the comparison of technical specifications can provide a useful overview of the capabilities of different cameras, it remains partial and cannot reveal, for example, the shooting experience and imaging performance when actually working with the FZ150 or the 645D. 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 why hands-on reviews by experts are important. 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.		Panasonic FZ150	3/5	+ +	..	76/100	4/5	4.5/5	Aug 2011	499	ebay.com
2.		Pentax 645D	5/5	..	..	..	..	..	Mar 2010	9,995	ebay.com
3.		Canon 1D Mark IV	5/5	..	..	89/100	..	..	Oct 2009	4,999	ebay.com
4.		Canon 1D X	5/5	..	..	..	4.5/5	4.5/5	Oct 2011	6,799	ebay.com
5.		Canon SX30	3/5	+ +	..	..	3.5/5	4/5	Sep 2010	429	ebay.com
6.		Canon SX40	..	+	..	..	4.5/5	4/5	Sep 2011	429	ebay.com
7.		Canon SX50	3/5	+ +	..	72/100	4.5/5	4.5/5	Sep 2012	429	ebay.com
8.		Canon SX60	3/5	+ +	..	75/100	4/5	4.5/5	Sep 2014	549	ebay.com
9.		Leica S Typ 006	..	..	..	..	..	..	Sep 2012	21,950	ebay.com
10.		Leica V-LUX 4	..	..	..	..	..	..	Sep 2012	949	ebay.com
11.		Nikon D3S	5/5	..	..	89/100	4.5/5	5/5	Oct 2009	5,199	ebay.com
12.		Panasonic FZ100	..	+	..	..	4.5/5	4.5/5	Jul 2010	499	ebay.com
13.		Panasonic FZ200	3/5	+ +	..	80/100	4.5/5	4.5/5	Jul 2012	599	ebay.com
14.		Panasonic LX5	4/5	+	..	73/100	4.5/5	4.5/5	Jul 2010	499	ebay.com
15.		Panasonic LX7	3/5	+ +	..	75/100	4/5	4.5/5	Jul 2012	499	ebay.com
16.		Panasonic ZS70	..	+ +	..	..	4/5	4/5	Apr 2017	449	ebay.com
17.		Pentax 645Z	5/5	..	3.5/5	..	4.5/5	5/5	Apr 2014	8,499	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 rating-comparisons among cameras that span long time periods or concern very differently equipped models make little sense. Also, kindly note that some of the listed sites have over time developped their review approaches and their reporting style.

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Other camera comparisons

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