G7 to GX80 big enough improvement? Just for stablisation?

alcelc wrote:

HRPOWER wrote:

Ok thank you!!!!!!!!!

was that lens you mentioned stablised -hard work finding stablised glass that starts with a 12

As said by member before me, there are 7 zoom lenses (3 from Olympus and 4 from Panny) started with 12 and 6 of them are OIS (4 Dual IS compatible).

Panny cameras, since GX8, started to support DUAL IS or DUAL IS-2 (a stop more effective stabilisation).

The DUAL IS of GX8 is the earliest (GX8 itself does not use a true 5 axis floating sensor), GX85 and its successor GX9 which use 5 axis floating sensor for the DUAL IS. G85/95, G9 and GH5 supports DUAL IS-2.

The stabilization rule of Panny is simple.

• OIS but non DUAL IS compatible lens = OIS or nothing.
• DUAL IS compatible lens= DUAL IS or nothing.
• Non OIS lens = IBIS or nothing.

All of the latest zoom lenses of Panny support DUAL IS. The older 14~45 (I suppose you are using it) is not DUAL IS compatible. On GX85, as per my home testing, can expect 3~3.5 stops of stabilisation. Using a DUAL IS compitable lens, e.g. 12~35 f/2.8, is 5 stops, the pancake 12~32, is 4~4.5 stops because of the ergonomic concern.

I suppose the two 12~60 (one from Panny and one from Panny Leica) should have not less than 5 stops stabilisation also.

Unlike Tele lenses that 25mm difference is not obvious, on wide angle side, the 2mm of a 12 (eq AoV of FF 24mm) has quite substantial difference from a 14. A reason for me to replace 14~45 with 12~35 despite of its satisfactory IQ.

To the heart of this question, yes, GX85 has quit substantial change from G7. However as GX85 is a lower spec model to G7, if you compare G7 to G85 or G95, the improvement is more significant.

I have G7  and GM5 (both no IBIS) and GX8  (IBIS and dual IS compatible), 5 Panasonic OIS lenses (42.5, 12-60, 14-140,12-32, 35-100), and 3 non-OIS primes (Panasonic 20mm and 25mm f1.7  and Olympus body cap 9mm f8 fisheye.

My experience is that,in real life, Panasonic OIS is very efficient, more on long lenses, and dual IS brings only small improvements over OIS alone.

IBIS is only really useful when shooting with non OIS lenses.

As you have G7, you must know whether shutter shock is really an issue for your kind of photography.

As for me, even with the 14-140, with the auto-eshutter feature, I seldom experienced it and I am quite happy with both GX8 and G7. GM5 is supposed not to be prone to shutter shock thanks to electronic first curtain shutter, same technology as GX80.