Hi Generowe,
I asked myself the same thing a few months back before I bought an Integral 2 with Schneider 80mm/f2 Xenotar. I also have used a Bronica SQ-Ai (on eBay as we speak) and the differences are in general:
6008i2 is quieter than the Bronica, the mirror slap and motor are tuned to = a lower frequency. The Rollei is *much* heavier than the SQ. I didn't notice any big difference in focusing screens between the f4 Bronica lenses and th= e f2.8 Planar PQS that came with my kit (sold). The Rollei feels and handles like a modern camera, the Bronica is basically a copy of a Hasselblad 500 series (and a much improved one at that ;-) and seems a bit old, and plasticky in comparison. The Bronica jumps in my hands when shooting, the Rollei sits solidly (due to the weight). I suppose I'll get flamed for this= , but I don't expect the image quality to be noticably different between them (unless you shoot test charts as your subject). I've only gotten a few roll= s of chromes back so far, and the optical quality is excellent. But so are th= e Bronica slides I've taken. The PS lenses are very capeable (I rented a Hass= y and the Bronica before buying the Bronica), so I wouldn't recommend getting a Rollei if you want better image quality or better compositions. The latte= r is had by learning to see and practicing, the former by buying a better tripod

The Rollei will give you an incredibly nice system from an ergonomic point of view, which is why I bought one. Now I don't carry a light meter, don't need an AE prism (never had one, but just the same...), don't need a winder, extra this or that. Everything is integrated, very intuitive and helps me concentrate on getting the picture. In other words the camera doesn't get in the way of the creative process. Kind of like a Mac vs PC thing, the Mac just lets you do your thing, the PC forces you to do everything it's way whether you want to or not. I'm used to working very slowly with the Bronica (get an idea, set up, frame subject, meter light, fine focus, meter light, mirror lockup, meter light, fire shutter, wind crank, move on), the Rollei is almost too fast for me (but it can be used slow or fast, the Bronica only slowly), but I'm getting used to it
The following was given to me by a friend in Argentina as the differences between the I and i2:
In general, Rollei 6008 I2 has the following "improvements" and specs(copie= d from a Rollei's brochure):
" The new Rolleiflex Integral2
Now Rollei is launching another highlight within the framework of its Syste= m 6000: the new Rolleiflex 6008 Integral2. This is based on its popular predecessor "Integral", but includes the entire new electronic concept of the 6008 AF with the exception of the autofocus mode. The new model is agai= n a fully integrated part of Rollei's time-proven System 6000. In other words, it is compatible with all the accessories and previous lenses, including the SLX lenses from 1976. Rollei has gone to great length= s to retain the system concept in order to make sure that all photographers already using the System 600 will fully benefit from technological progress=
The Rolleiflex 6008 Integral2 will be available from July 2003.=20
An illuminated LC display is the control center for aperture and shutter speed, film speed, battery status, preflash metering, flash readiness, programmed AE, shutter-priority AE and aperture-priority AE, exposure compensation, spot, multi-spot and average metering, AE lock, vertical/horizontal format as well as an additional frame counter for the 4.5x6 format. The LC display can be disabled.
Additional custom functions can be assigned via the mode switch. The selection is made with the memo button of the camera, the following setting= s being available:
Type of flash synchronization, preflash metering, self-timer, display On/Off, quiet operation On/Off, film-advance suppression On/Off, center-weighting of average metering On/Off, burst rate in continuous shooting and bracketing selection (auto bracketing mode).
In flash technology also, the new model features important improvements ove= r its predecessor: Due to TTL flash control, a positive exposure compensation in the auto exposure mode with a dedicated SCA flash unit will result in additional (additive) flash exposure, ensuring even better balance between fill flash and daylight.
The new SCA-3562 flash adapter developed in cooperation with Metz allows th= e exchange of the following data between the dedicated flash unit (such as th= e Metz 54MZ-3) and the 6008 Integral2:
- Transfer of lens aperture and film speed to control the autosensor mode of the flash unit.
- Reading of flash compensation by the corresponding dedicated flash unit.
In conjunction with a dedicated SCA-3562 flash adapter, the 6008 Integral2 allows the following dedicated flash modes:
- Programmed autoflash - Aperture-priority autoflash - Shutter-priority autoflash - Automatic fill flash (compensating and additive) - Flash bracketing.
In addition, preflash metering is possible without prior mirror lockup or a suitable metering back to check on flash output or optimum aperture for wor= k with studio flash units.
The serial interface of the Rolleiflex 6008 Integral2 makes it possible to use digital backs without any connecting cables. Gold-plated contact strips on the camera serve to control the different modes. Diaphragm and shutter blades controlled by linear motors ensure absolute freedom from vibrations during 16-shot exposures with a digital back. As a result, users can be sure that their hardware investment is sound and safe.
Another decisive advantage of the Rolleiflex 6008 Integral2 is the possibility of individually programming its functions via a PC. Rollei's MasterWare software on CD-ROM and a connecting cable for the universal 14-pin connector of the camera give users the choice of practically free programming and remote control of the camera.
Rolleiflex 6008 Integral2
Specifications
Camera type 6x6 single-lens reflex system camera with multiple exposure control, variable metering mode, TTL autoflash (SCA-3000) and motorized film advance=
Frame sizes 6x6 cm and 4.5x6 cm
Film sizes Sizes 120 and 220 roll film for 12 or 24 6x6cm frames or 16 or 32 4.5x6cm frames. Instant film pack for 10 6x6cm frames.
Film speeds From ISO 25/15=B0 to ISO 6400/39=B0 can be set on interchangeable magazine in increments of 1/3 EV.
Shutter Electronically controlled between-the-lens shutter with speeds from 1/1000 = s (PQS lenses) to 30 seconds and B, stepped in one-third increments.
Exposure metering 1. Center-weighted multi-zone metering
2. Spot metering with central photo diode (approx. 1% of frame size= )
3. Multi-spot metering with up to five readings
4. Automatic compensation of retroincident light during metering an= d exposure
Exposure modes 1. Shutter-priority AE
2. Aperture-priority AE
3. Programmed AE biased for fast speeds
4. Metered manual in one-third increments
Metering ranges Exposure: EV =AD1 to 19 at ISO 100/21=B0, f2/80 mm
TTL flash: ISO 25 to 1600
AE lock Functional in all automatic exposure modes, locking both shutter speed and aperture (exposure value).
Exposure compensation 1. Manual setting from =AD4 2/3 to +2 EV in one-third increments.
2. Via autobracketing (S=B1 pos.) over =B12 EV (autobracketing with 1/3EV or 2/3EV increments)
Autoflash TTL OTF metering. Flash readiness and exposure control displayed in viewfinder. Possibility of automatic flash firing in low light, in conjunction with Metz flash units; compensating and additive fill flash.
TTL studio preflash metering In conjunction with studio flash units.
Flash synchronization Full synchronization at all shutter speeds from 1/1000 s to 30 s; hot flash shoe with contacts for dedicated Metz flash units. New SCA interface via Rollei SCA-3562 adapter.
Multiple exposures 1. Film advance can be disengaged in ME position of camera dial; uninterrupted viewfinder image.
2. Film advance can be electronically suppressed without viewfinder image, for digital backs.
Reflex mirror Multicoated partially transmitting reflex mirror with lockup and pneumatic brake, controllable even after lockup.
Viewfinder system Standard collapsible finderhood with hinged magnifier, interchangeable for 45=B0 prism finder, 90=B0 direct-vision finder or rigid magnifying hood. Interchangeable focusing screens. Super-bright High-D screen is standard equipment.
Viewfinder display Illuminated viewfinder LCD for shutter speed and aperture (in one-third increments), metered manual, exposure compensation, spot/multi-spot metering, flash readiness, flash output, custom functions, frame counter, vertical or horizontal format in 4.5x6cm frames, battery status. LCD illumination controlled by ambient light; can be disabled.
Film advance Automatic by integral high-performance motor; single frames and continuous shooting with up to 2 fps. Automatic film prewind to frame 1; automatic windup of film after last frame.
Power supply By rechargeable sintered-plate NiCad battery for about 200 exposures. Rapid charger (110 =AD 240 V, 50/60 Hz) with automatic switch-over to normal charging and 12V connector for car battery.
Handgrip With four click stops (for use with folding hood or prism finder), detachable. Leather wrist strap detachable.
Interchangeable magazines Magazine types 6x6/120, 6x6/220 and 4560 with integral laminar drawslide, frame counter, film-speed dial, film-type display and preloadable film insert. Instant film-pack magazine (10 6x6cm exposures); digital backs.
Custom functions and choices of basic settings 1. Type of flash synchronization 2. Selection of autobracketing 3. Activation of frame counter in display 4. Preflash metering 5. Self-timer 6. Display On/Off 7. Quiet film advance On/Off 8. Film-advance suppression On/Off 9. Center weighting of exposure metering On/Off 10. Burst control during continuous shooting
Terminals 1. 14-pin universal socket for cable release and other electrical triggering devices, with screw thread.
2. Interface for digital backs and PC (MasterWare).
PC linkup Possibility of individual programming and control of all camera functions with optional Rollei software (MasterWare). PC connected to 14-pin universa= l terminal of camera.
Tripod quick-release plate With 1/4" and 3/8" tripod sockets.
Dimensions Without lens: 143 x 139 x 124 mm; With lens 80mm f/2.8: 143 x 139 x 176 mm (without handgrip in each case)
Weight Without lens: 1500 g"
Regards, Thor