spaceylb wrote:
....The 1D 3 is an APS-H sensor. Not FF.
Agreed... 1D Mk3 uses a sensor that's in between the size of APS-C (1.6X) and Full Frame (1X). The lens factor for the 1D3 is 1.3X.
1D Mk3 is a 10MP "sports/action" camera... Intro'd in 2007, ISO 100-3200 (expandable to ISO L 50 and H 6400), able to shoot 10 frames per second, with dual image processors and a separate chip driving the 45-point autofocus system, dual memory card slots (1 SD, 1 CF). IMPORTANT (from Wikipedia)
"Problems: Issues about 1D Mark III cameras were reported throughout the online photographer communities after the camera's retail launch. These relate to SERVO AF mode, to stripes within the picture, cursor navigation failure, Err 99 messages and sub par low light focus acquisition performance compared to previous models. Canon investigated a few of these issues, and some are believed to be resolved in firmware release 1.1.1, which was released in September 2007.
Most significant of the issues is the autofocus (AF) issue; under certain conditions, (notably warm, bright, sunny days, conditions under which AF usually operates the best) photographer Rob Galbraith has reported poor AF performance.[6] As of October 17, 2007, Canon technical representatives began stating the widely reported auto focus issue is suspected to be caused by an internal submirror assembly that requires replacement on most Cameras with serial numbers between 501001 and 546561[7] This correction has been made in production models dating to sometime shortly before the announcement of the fix.
As of August 2008, some reviewers have continued to note some level of remaining problems with AF both in the EOS-1D Mark III and EOS-1Ds Mark III even after the hardware and firmware fixes noted by Canon.[8]
On March 3, 2009, Canon announced new firmware and a free AF recalibration for the 1D Mark III. Initial reports from owners who have received their camera back from the AF recalibration seem to be largely positive, although there are still some mixed results."The 1D
S Mark III (2007) is a full frame camera that sold concurrent with and is similar to the 1D3. The primary differences between the APS-H and FF versions are that the latter is 21MP, ISO 100-1600 (expandable to L 50 and H 3200), and has a slower 5 fps frame rate. The 1DS3 uses similar 45-pont AF system (though it didn't seem to have the same problems as the 1D3's) and might be called more of a "studio" camera and stayed continued in production for several years after the 1D3 was superseded by the 1D Mark IV.
The 5D Mark II (2008) is full frame and uses the same 21MP sensor as the 1DS3... but offers a different ISO range 100-6400 (expandable to L 50, H1 12800 and H2 25600). Note that this is a much higher ISO range than the 1DS3 offers. It has a slightly slower 4 fps frame rate and uses a much less sophisticated, lower performance 9-point AF system (little or no changes from the earlier, original 5D model). There are 6 "hidden, assist" AF points that can be enabled to operate only in AI Servo mode. Those additional points are not seen in the viewfinder, but essentially increase the size of the center AF point to about what's indicated by the Spot Metering circle engraved on the focus screen. But even with those assist points enabled, the camera is not fast acquiring focus or particularly good tracking movement... not saying it's impossible, just that other cameras handle sports/action shooting better. The 5DII doesn't have dual processors and uses the same processor for imaging and AF operations. It has a single memory card slot (compact flash).
While all three of these cameras have the same shutter speed range from 30 seconds to 1/8000 top speed, the 1D-series models have 1/250 flash sync, while the 5D-series have 1/200. The older 5D-series models' shutters are rated for 100,000 or 150,000 actuations (though many have been known to operate well beyond that)... the 1D-series models typically have used 200,000, 300,000 or higher rated shutters. The latest 1DX Mark II has 450,000 click rated shutter.
The 5D Mark II was the first model to use the LP-E6 lithium batteries now used in many other models (now using fully interchangeable, but slightly higher capacity LP-E6N). The 1D-series models use a much bigger battery that's able to take 2X to 3X more shots per charge and the 1D-series have built-in, non-removable vertical/battery grip. 5DII can optionally be fitted with BG-E6 vertical/battery grip, which allows use of dual LP-E6 batteries to double the camera's shots per charge.
The 5D Mark II with HD Video capability has seen extensive use in the motion picture and television industries.
I am pretty sure all three cameras have "self cleaning" sensors. I know the 5DII does... that was one of the features that caused me to buy mine. The original 5D was often referred to as a "dust magnet" and needed frequent manual sensor cleaning (as did other models without self-cleaning sensors). The new feature on the 5DII largely solved that problem. I would confirm that 1D3 or 1DS3 has the sensor cleaning feature, before considering them.
If looking for a sports/action camera 7D or 7D Mark II (APS-C, 2009 and 2014) actually offer performance similar to 1D3.... 7D can shoot at 8 fps and has a high performance, 19-point AF system. 7D2 can shoot at 10 fps, has a high performance 65-point AF system and has dual processors. Both 7D models have much higher resolution than 1D3 (10MP).... 7D is 18MP and 7D2 is 20MP. They also both have higher ISO range. 7D's is ISO 100-6400, plus H 12800). 7D2's is ISO 100-16000, plus H1 25600 and H2 51200).
If looking for a landscape, portraiture, macro camera... 5DII might serve well for these and similar more sedentary shooting purposes. It's AF system simply is not up to sports/action work (which is the 1D3's forté). Among other things, the 5D Mark III (22MP, 2012) finally got a much upgraded 61-point AF system (further improved in 1DX, 1DX Mark II and 5D Mark IV).
I still have my 5D Mark II... but will soon be updating to 5D Mark IV (30MP) or 5DS (50MP).
Because most of what I shoot is sports/action, I use a pair of 7D Mark II far more frequently than the older full frame camera. And, frankly, the current APS-C cameras such as 7DII and 80D can pretty much match the 5DII's image quality and are able to shoot at even higher ISOs.