After 10 mins with the fan, it's of course not as cold as the air con, but it is cool to the touch. I did quickly take it away to plonk in a battery and the record times are back to 10 mins. Didnt do a record. Leaving it for a further 10 mins.
A the further 10 mins takes it up to 11mins 52, and then I realised the 64GB card was in, doh! Put the 128GB in and I get 15 mins I get at the start. So a significant improvement over what I got with fw 1.0 using the same fan (2hrs). Changing the algorithm has certainly made some welcome changes.
These are of course ideal temps. Controlled env, indoors. This USB or battery powered fan costs about 100HKD, about 10 GBP, 12USD.
Next test, I put the table and camera outside on the balcony. This probably took around 5 mins to find another extension cable, but the camera was still cooler from the 5" fan cooling it. I would guess the temp is around 30 degrees C (86 F) / 76 percent humidity according to the iphone temp app (which does it based on location). Not in direct sunlight, it is in the shade, and that's just giving an idea. I havent done this test with FW 1.0, so I have no comparison other than the indoor times. Although the picture shows the 5" fan, it isn't switched on during recording, I am only using it for cooldown. I get 18mins 31s. of recording (test 3 MC)
After 20mins with the 5" fan, I get 5mins recording displayed. I then rotated to portrait in case that is better cooling for a further 10 mins. Still says 5 mins. Hit the record button so I can get it to overheat and then see what the cooldown is without the fan.
Actual recording on the balcony is 12mins 1s before it shuts down (test 4 MC)
After 20 mins, with no fan, and no picture to show
- the internal recording tells me 4mins. I leave it a further 10 mins. It tells me 5mins. Recording on the balcony gives me 8mins 4s
Oh and correction, sorry, it is 8k25 with clog, IPB, no IBIS, no AF. Have corrected that in the prev post.
I uploaded these pics from the iphone (FW Test 3-1, 3-2 and 3-3) with no editing, no cropping, no downsizing just in case someone would feel that I might somehow cheat...
Summary:
1st Test from power up (off all night) 19mins 56s
Next to air con unit for 15 mins.
2nd Test (indoors) 26m (ran out of storage, and then would not record further)
Cool down with 5" Fan for 15mins
3rd Test Outside on Balcony 18mins 31secs.
Cool down with 5" fan on Balcony. After 20mins it stated 5 mins. After a futher 10 mins still 5 mins.
4th Test Outside on Balcony 12mins 1s
Cool down by itself. After 20 mins it says 4 mins available and it feels midly warm. After a further 10 it tells me 5 mins.
5th Test (final) outside on Balcony 8mins 4s
Conclusions (mine!)
Indoors, with a 5" USB fan and some form of env temp control, then I think the recovery time has decreased a lot. For me, 2hrs down to 20 mins.
Outdoors, same fan, it gave me around 50% more recording time for the same cooldown period.