| OBSERVACIONES | When the Canon EOS System was introduced in 1987, all of its AF 35mm SLR cameras introduced up to April ´89 were designed to be used with the new, 6-volt 2CR5 lithium battery. No AA-size batteries could be used with any of the early EOS models nor was there any accessory pack designed to accept such penlight cells made available. The original EOS-1 pro camera, which made its debut in the Fall of ´89, was also designed to accept the same 6-volt 2CR5 lithium battery. But there was a difference: while all the amateur EOS models before the EOS-1 were designed to accept only the 2CR5 battery, users of the pro camera had the option of choosing the Power Drive Booster E1 (PDB-E1) that accepted eight pieces of AA-size penlight cells over the standard GR-E1 Grip, which housed the 6-volt 2CR5 lithium battery. The reason that Canon had such an option available with the EOS-1 was because professional users like to custom-tailor the camera to suit the complexities of their assignments. Sports and news photographers would have their EOS-1 cameras permanently attached to the PDB-E1 while those that specialize in travel and landscape may opt for a lighter package altogether by utilizing the standard GR-E1 grip with the 6-volt 2CR5 battery. When the EOS-1 was replaced five years later by the EOS-1N, the same GR-E1 Grip was also offered as a standard accessory and the PDB-E1 as an option. However, in certain markets, the replacement model was offered as the EOS-1N HS (High Speed) package instead, which included the PDB-E1 as standard accessory, minus the GR-E1 Grip. |
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