Compact Flash compartment

The Compact Flash compartment is situated at the back of the hand grip. It can accept either Type I or Type II Compact Flash cards and is fully compatible with the IBM Microdrive. It is opened by turning a small knob (just cropped at the bottom of this image). The door itself is spring loaded and 'pops open' as soonas you turn the knob. Just like Nikon's D1 you can close the door and pick up the camera in one movement. If you take a closer look at this image you'll see the rubber environmental seal around the inside of the compartment door.

  • C.Fn 2 allows you to disable shutter release when there is no Compact Flash card inserted.

Battery, Charger, AC Adapter and Compartment

The EOS-1D's battery fits into the base of the camera, it has a double locking system which requires you to turn a lever and then press a release button before the battery can be removed. The battery itself is of the NiMH type. The charger connects to the battery via a plug on the end of two cables and is capable of charging two batteries simultaneously (a full charge of a completely flat battery takes approximately two hours). Note that there is also a 'refresh' feature for conditioning batteries.

If you take a close look at the last image below you'll see some of the rubber environmental seal around the battery cap which helps to keep the battery compartment waterproof.

AC Adapter / DC Coupler kit DCK-E1

Also supplied with the EOS-1D is the DC Coupler (a dummy battery with a DC-IN socket) and AC Adapter PA-V16 (100 - 240 V AC input, 13V, 1.8A output). This kit allows you to connect the camera to an AC power supply for studio shooting, remote capture and long Firewire connectivity (or simply while the battery is charging). Again, Kudos to Canon for making this a standard item.

Environmental seals

Just like the EOS-1V the 1D is environmentally sealed, this means that there are rubber O-rings around the controls and that compartment doors have rubber seals. In total the camera has no less than 90 environmental seal points (indicated in red in the skeleton image above). It is however worth bearing in mind that the camera is only as well sealed as the lens used, and for that you'll need one of the special L lenses with rubber grommets which fit flush to the lens mount:

  • Canon EF 16 - 35mm F2.8L USM
  • Canon EF 70 - 200 mm F2.8L IS USM
  • Canon EF 300mm F2.8L IS USM
  • Canon EF 400mm F2.8L IS USM
  • Canon EF 400mm F4.0 DO IS USM
  • Canon EF 500mm F4.0L IS USM
  • Canon EF 600mm F4.0L IS USM

Environmental seals quick test

Although not definitive I did do a quick test of the 1D's environmental seals, with the new 70-200 F2.8 IS mounted on the camera it was liberally sprayed with water (to simulate a light shower) and left to stand for 15 minutes. The camera was then wiped down with a soft cloth, no water was found to have leaked into any of the major compartments (lens mount, battery, connectors, CF etc.) and the camera was functioning correctly. Clearly the 1D would be capable of withstanding far more than this but this was the most my nerves could handle.


On the right side of the camera (from the rear) are two rubber doors which can be opened and rotated 180 degrees (as shown here). They cover the PC sync terminal (flash), remote terminal and IEEE 1394 (Firewire) port. A 6-pin to 6-pin Firewire cable is included.

Note that the EOS-1D has no serial input (for GPS for example) nor a video out capability.

Flash / Accessory Hot shoe

The EOS-1D features the same E-TTL hot shoe seen on EOS-1V (and EOS-D30). Full electronic TTL metering (a pre-flash before the main exposure) is supported by the EX series of Canon speedlights (such as 380EX, 420EX and 550EX). Pictured below with the 550EX speedlight attached.

In addition the EOS-1D has the following flash photography features: a 1/500 sec X-Sync shutter speed, High Speed Sync (FP Flash), AF Assist (with speedlight lamp), Flash Exposure Lock (FEL), Flash Exposure Compensation (+/- 3 EV in 0.3 EV steps),

  • P.Fn 15 allows you to disable the flash unit's AF assist beam.
  • C.Fn 14 allows you to disable the automatic reduction of fill-in flash. Normally the 1D will decrease flash output in a well lit situation to avoid overexposure, however you may wish to cancel this auto-reduction if the subject is strongly backlit
  • C.Fn 15 enables you to choose from first curtain or second curtain flash synchronization


The bottom of the EOS-1D is fairly straightforward, the metal tripod mount is aligned with the center of the lens. The eyelet on the left is for attaching the supplied hand strap. The base is plastic, which is a pity, I preferred the D1's "rubber foot" which can often assist when using a street lamp as an impromptu tripod.

In the box

Inside the box you'll find a large range of accessories and items:

  • Canon EOS-1D digital SLR
  • Eyecup Ec-II
  • Battery Pack NP-E3 (NiMH)
  • Battery Charger NC-E2
  • DC Coupler Kit DCK-E1
  • Neck Strap L4
  • Hand Strap E1
  • Interface Cable IFC-200D6 (Firewire - 6-pin to 6-pin)
  • CD-ROM's (different than those pictured):
    • EOS Digital Solutions Disk
    • Adobe Photoshop LE Disk
  • Manuals / Paperwork:
    • EOS-1D Instructions (main manual)
    • Battery pack and charger Instructions
    • DC Coupler Kit Instructions
    • EOS-1D Software Instructions
    • Quick Operation Guide
    • Warranty Card
    • EOS-1D Accessories guide