By doing that, SONY obliged all the other marks to react very quickly. For last thirty years, the Famous Five of reflex camera manufacturers includes: Canon, Nikon, Minolta, Pentax and Olympus. SONY takes now the place and the technology of Minolta. At this Photokina, each of other four marks presents a new reflex camera with 10 Million pixels for 1000 $, that completes their already existing reflex range: pro cameras for Canon and Nikon, expert and general public cameras with important optical system (lenses) for each.
The obligation to have quickly many lenses and a range of two or three reflex bodies limits strongly the arrival of new actors on this market. It is necessary either to repurchase a mark like made SONY, or to be combined with one actors like SAMSUNG with Pentax or to join consortium 4/3 like Panasonic.

Zeiss Distagon T* 2/35 ZF and Zeiss Distagon T* 2,8/25 ZF

Among the new cameras, the Nikon D80 replaces the D70 with a depth-of-field preview button and i-ttl flash wireless control. It has the same 2,5" TFT LCD and the same APS-C 10,2 Megapixels CCD as Nikon D200 but the SD card, body and 3D colour Matrix Metering system are coming directly from D50. It has neither anti-shake system, nor dust-protecting system. Nikon announces also two lenses: the Nikon AF-S DX 18-135 mm and the Nikon AF-S 70-300 mm VR. The Canon Rebel XTi replaces the Rebel XT and has a dust-protecting system and a Canon sensor CMOS, Pentax K10D has a new design and the same SONY sensor already employed by Nikon and SONY but its own 22 bit Analog to Digital converter. It very complete with an anti-shake and dust-protecting system integrated into the body of camera. It is the only camera of this level to have 72 dust and weather resistant seals. Except a magnesium body, it can be a challenger of Canon 5D or Nikon D200 more than Rebel XTi or D80. It is sold also as Samsung GX-10. Pentax announces three new digital-only sealed DA lenses which utilize built-in Supersonic motors, like AF-S Nikon technology: the Pentax DA* 16-50 mm F2.8, Pentax DA* 50-135 mm F2.8 and Pentax DA* 60-250 mm F4 lenses all ED IF. Olympus E400 is the most compact with its 4/3 Kodak CCD sensor and also has a dust-protecting system.

Zeiss, since the disappearance of Contax, manufactures autofocus lenses for SONY and a new range ZF with manual focus for Nikon, since Nikon has stopped the production of AI-S lenses.
Zeiss presented at Photokina fours new lenses: The Distagon T* 2/35 ZF, the Distagon T* 2,8/25 ZF and two macro lenses Makro-Planar T* 2/50 ZF and Makro-Planar T* 2/100 ZF.