Canon Digital IXUS 900 Ti | Digital Camera Review | Storage and Energy
The Canon Digital IXUS 900 Ti is one of the first Canon digital compact cameras that supports the new SDHC memory cards. This new platform was recently introduced, and should, in the near feature, enable considerably higher storage capacities than the 2GB that currently forms the limit for Secure Digital cards. At this time, SDHC cards are available with a storage capacity of 4GB, and in theory this could increase to a respectable 32GB. To give you a general idea: a 2GB SD memory card allows you to store 464 images in the highest quality (JPEG 10 Megapixels Super Fine). A single image in this quality takes up approximately 4.1 MB. This brings us to the functionality of the memory card that is standard delivered with the Canon IXUS 900 Ti. It offers 32MB of storage capacity, which translates to approximately 7 images. Although this allows a quick first encounter with the camera, things don't go much further than that. Considering 3 rolls of film of 36 images each (do you remember these?), we would recommend purchasing a memory card of at least 512MB.
SanDisk Extreme II SD card
Consequently, it would be only logical to combine the purchase of a Canon Digital IXUS 900 Ti with that of an extra memory card, or even several cards. Secure Digital offer a wide variety of memory cards, especially with the recent addition of the Secure Digital High Capacity (SDHC) cards. It has to be said, however, that the latter isn't yet an interesting option for this type of compact camera, unless there is a realistic chance you will frequently be storing more than 464 images on a single card. Secure Digital memory cards are available in a standard, fast and fastest version. We chose to compare the standard (512MB SD SanDisk) and the fast SanDisk Extreme III 1GB Secure Digital card. The Canon IXUS 900 Ti features a continuous shooting mode that allows you to capture a series of images with a speed of 2.1fps. However, this does require a fast card. When working with the standard Secure Digital card, you will find the 5th image to be the limit (JPEG 10 Megapixels Super Fine), whilst the speed decreases to approximately 1fps. In combination with an Extreme III SD card, you will be able to shoot continuously until the memory card is full, without experiencing any delays whatsoever. Those who wish to capture images continuously should therefore seriously consider purchasing a fast card!
Considering 512MB of storage capacity:
Resolution 3648 x 2736 pixels, Super Fine, 116 images, 4100kB
Resolution 3648 x 2736 pixels, Fine, 194 images, 2460kB
Resolution 3648 x 2736 pixels, Normal, 402 images, 1170kB
Resolution 3648 x 2028 pixels, Super Fine, 157 images, 3040kB
Resolution 3648 x 2028 pixels, Fine, 257 images, 1847kB
Resolution 3648 x 2028 pixels, Normal, 539 images, 874kB
Resolution 2816 x 2112 pixels, Super Fine, 176 images, 2720kB
Resolution 2816 x 2112 pixels, Fine, 292 images, 1620kB
Resolution 2816 x 2112 pixels, Normal, 603 images, 780kB
Resolution 2272 x 1704 pixels, Super Fine, 237 images, 2002kB
Resolution 2272 x 1704 pixels, Fine, 425 images, 1116kB
Resolution 2272 x 1704 pixels, Normal, 839 images, 556kB
Resolution 1600 x 1200 pixels, Super Fine, 471 images, 1002kB
Resolution 1600 x 1200 pixels, Fine, 839 images, 558kB
Resolution 1600 x 1200 pixels, Normal, 1590 images, 278kB
Resolution 640 x 480 pixels, Super Fine, 1777 images, 249kB
Resolution 640 x 480 pixels, Fine, 2747 images, 150kB
Resolution 640 x 480 pixels, Normal, 4317 images, 84kB
Video resolution 1024 x 768 pixels, 15 fps, 4 min. 9sec. 1980kB/sec
Video resolution 640 x 480 pixels, 30 fps, 4 min. 9sec. 1920kB/sec
Video resolution 640 x 480 pixels, 15 fps, 8 min. 14 sec. 960kB/sec
Video resolution 320 x 240 pixels, 30 fps, 11 min. 42 sec. 660kB/sec
Video resolution 320 x 240 pixels, 15 fps, 22 min. 53 sec. 330kB/sec
Video resolution 160 x 120 pixels, 15 fps, 55 min. 57 sec. 120kB/sec
Canon 900Ti - USB 2.0 Hi-Speed interface
Despite the introduction of the fast USB 2.0 Hi-Speed interface we still see many cameras, even in the higher segment, equipped with the slow USB 1.1 version. The Canon IXUS 900 Ti, however, features the fastest version, which -in theory- should allow 480Mbps. In practice, it is unlikely you will actually be able to work with this speed; you should count on approximately 5MB/sec, which means the data from a memory card with a large storage capacity will be transferred to a computer or notebook at a reasonably high speed. The true speed freaks among us will be pleased to hear that SanDisk also offer a super fast USB 2.0 card reader, which will speed up the transfer by at least three times.
Canon Digital IXUS 900 Ti - NB-5L Li-Ion battery
The Canon Digital IXUS 900 Ti digital compact camera gets its power from a small and light-weight Lithium Ion battery. The Canon NB-5L Li-Ion battery has a capacity of 3.7V 1120mAh, which -according to Canon- should enable you to capture approximately 230 images with a fully charged battery (room temperature, alternating between wide-angle and tele lens every 30 seconds, flash used every two images, and the camera deactivated after each ten images. The camera remains switched off for a reasonable amount of time, whereupon it is re-activated and the procedure repeated). The advantage of an optical viewfinder once again becomes clear when working with a nearly empty battery in a situation where it cannot be re-charged. The monitor can simply be switched off, which saves a considerable amount of energy, and the optical viewfinder can be used instead. It should be said that there is a factor 3 difference when operating the camera with or without the LCD monitor activated. Although a second battery may prove valuable for those who intend to fill a 2GB Secure Digital memory card, the camera's power-economical features are likely to suffice for the average user.