Modern Classic SLR Series
Canon EOS-1N- Main Reference Map / Nomenclature
Canon Battery Pack BP-E1
One of the issue that relates to the previous Canon EOS-1 was the power source alternative. Type AA dry batteries are usable by attaching the power drive booster E1 (EOS-1 HS) but its disadvantage for users who do not need high speed continuous exposures. is that it is too bulky and too heavy. Both new and old EOS-1 cameras use a 2CR5 6-volts Lithium cells in its bare basic configuration As heavy usage and long session on distant assignment may call for safety backup of power supply. Availability of Lithium cells is not that easy in some remote areas, but double-A alkaline cells are easily available. So, in order to preserve constant activation of the hardware in duties, Canon planned for an alternate accessory for the EOS-1N to meet such requirements and, at the same time, to serve as a new power source grip which can house both AA-size batteries and a 2CR5 battery, or which may be freely interchanged as desired. The resulting product come with a housing capacity of 4 AA alkaline manganese dry batteries LR6 (or 4 type AA Ni-Cd batteries KR 15/5 1) that can be housed inside the battery magazine and one 2CR5 battery can be installed inside the grip, user selectable simply by a switch operation.
1) Widely available and lower priced type AA dry batteries can be used by attaching this battery pack. Users can bring their cameras to any district free from anxiety of battery availability. 2) 4 type AA alkaline manganese dry batteries LR4 (or 4 type AA Ni-Cd batteries KR15/51) can be housed in its battery magazine and one 2CR5 can be installed inside the grip, providing a choice of either of the two types of power sources by use of a battery changeover switch. 3) It also enables efficient battery utilization using type AA dry batteries under normal temperatures and using 2CR5 in cold weather. 4) Type AA dry batteries only may be used, without insertion of the 2CR5. Or, only a 2CR5 may be installed with the battery pack used as a L-grip. 5) It can be attached as is to the previous EOS-1. 6) It features light weight and compact dimensions.
With this added BP-E1, the EOS-1 system now has a few solutions in providing various means in supporting professionals at work, regardless where they are. For a choice of tip top performance, you can opt for the BDP-E1 ("BDP" stands for "Power Drive Booster"; or this alternative accessory, the BP-E1 (Battery Pack).
Material for this Canon Power Pack BP-E1 is the same with PDB-E1, constructed mainly of glass fiber-reinforced polycarbonate resin. black leather-tone coating (consists of rubber coating and synthetic leather lamination). The hand strap for the PDB-E1 is compatible. Case is not available for this accessory but contact protection cover is available (same as the protection cover for the PDB-E1.
Credit: All images of the Battery Pack E-1 courtesy of 'Shutterblade team' (e-mail)who specializes trading of new, used collectable cameras. The Company also operates a popular Ebay Store. All image(s) appeared herein are Copyright © 2005. All rights reserved. Please respect the visual property of the contributing photographer.
The BP-E1 does not provide enhancement to the features available in the EOS-1N as in the case like the comparing BDP-E1, but rather, it is just a convenient system accessory that has the shape, dimension of a conventional motor drive or winder and the best part is, it replaces the hand grip of the standard EOS-1N for a longer, firmer hand grip and accept standard AA alkaline batteries. If you are new to the EOS-1 system, this could often confuse you between the two L-shape devices. Anyway, this magazine takes four AA alkaline batteries (AA lithium batteries N/A) and the grip portion can house a 2CR5 lithium battery at the same time (you can detach from the normal GR-E1 hand grip for this).
Inserted Photo: - A switch toggles the power source between the two types of batteries to suit the shooting conditions. Although the continuous shooting speed is the same as the EOS-1N body only; the hand grip on this Power Pack is larger, makes it easier to hold and operate the camera. The camera can also operate with only the lithium (2CR5 position) installed on the hidden section or only the AA batteries (LR6 position) (LR6 or or four AA-size Ni-Cd batteries (KR15/51) on the magazine.
Installation and removal from camera: Remove the GR-E1 hand grip from the camera body before installing the power pack using the CU1/4 tripod socket threading. When removing, reverse the sequence above. The signal transmission is by means of the 13 direct connection electrical contacts..
Leading and removing the batteries 2CR5: Before attaching the type AA BP-EI to the camera body, install the 2CR5 inside the grip section of the power pack. When removing, use the battery release lever. Type AA dry batteries: The power pack may be attached to the body of the EOS-1N when installing or removing these dry batteries, since the battery magazine can be slid in and out of the power pack independently. Shooting Capacity is virtually the same with the EOS-1 i.e. with LR6 x 4 = 20 rolls x 36 exp. at normal temperature and approx. not advisable for low temperature shooting; with type Ni-Cd batteries, approx. 10 rolls for normal temperature and 5-7 rolls x 36 exp. on low temperature usage.
The camera doesn't require turning off while performing the power source switching but it is not advisable to do so when camera is activating other task such as film transport modes like power film rewinding etc.. The accessory can also be used not just for the EOS-1N but on others such as Canon EOS-1NRS, EOS-1V and even EOS-3 etc.
Battery Magazine BM-1
The Battery Magazine BM-1 is dedicated to and comes with the Battery Pack BP-E1. It can hold four AA alkaline or Ni-Cd batteries. (Canon advises no lithium batteries be used as the initial surge of Lithium cells may damage the electrical circuitry of lens and lens mechanism; I am not sure if this has improved). You pull and slide out for replacement. You can decide a spare battery magazine on hand which makes battery replacement quick and easy without the hassle of placing batteries into magazine during shooting interval.
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