alphonso49uk

On a recent trip to the lake district I found the rx10m4 had started acting strangely.
I usually shoot in aperture mode mainly due to the fact that the camera doesnt like slow shutter speeds in daylight.Ive always assumed that is because of the abscence of a built in nd filter although Ive never really experienced that in a dslr. Slow shutter speeds result in well overexposed images.
So I basically shoot at f4 usually, auto iso...100-1600 and metering is entire screen average rather than multi which Ive previously had good results with.
I noticed during shooting that for some reason the camera had started to select ridiculously high shutter speeds at f4 in lighting conditions which were dull, cloudy and a bit hazy. Shutter speeds varied from 1/5000 to 1/16000 which is what the attached photo was taken at.
In the past Ive found the camera does usually underexpose and Ive often increased the exposure by a couple of stops but never experienced the shutter speed issue. By the way the iso remained fairly constant at iso1000.
Nobody wants to be taking landscapes at 1/16000....does anybody know whats going on?
Cheers

jerryc41 Loc: Catskill Mts of NY

I bet the first response after mine is going to ask you to post the photo again and click "store original."

rmalarz Loc: Tempe, Arizona

--Bob

camerapapi Loc: Miami, Fl.

I do not know of your expertise as a photographer but it seems as if you are leaving the exposure of your subjects to the camera. First thing first, at f4 surely the camera will select a high shutter speed at ISO 1000. Under cloudy conditions 1/5000, 1/6000 sec. seems to me as too fast.

Is the camera under warranty? If it is and it was mine I would like to have it checked but before I would make sure the exposure meter is working properly. If you have a gray card you could do your own test. Placed it in sunlight and at ISO 100 with an aperture of f16 meter from the gray card. No shadows should be on the card, no glare. Shutter speed should be 1/100 sec or 1/125 sec. Meter from the gray card and if the exposure is not f16-1/125 sec. then the meter is off.

I do not know of any camera with a built-in ND filter although I believe Fuji has such feature. I know of Sony software with the ND filter. I do not know of any lens with a built-in ND filter either. ISO 100-200 is a good start. Exposures in sunlight with those ISO settings and the lens at f16 should be reasonably low within the ISO range or in other words, around 1/100 to 1/200 sec. assuming there is not a very bright sky included in the final picture. I like to use spot meter because it is very precise. In the image you posted a meter reading of the brightest area of the sky and then opening 1 stop from the meter reading should give you an excellent exposure. Metering from the grayish sand in the foreground should also give you a good exposure by just following the meter reading.

If you are unable to test the camera on your own or do not feel you can test it to your satisfaction then a technician should take a look at it to make sure it is working to specs.

rmalarz Loc: Tempe, Arizona

With an ISO of 1000, I would expect fast shutter speeds.
--Bob

alphonso49uk

Hi...Thanks for the quick replies.
From your comments I have concluded I am a total idiot.
Id assumed the iso was set to auto 100-1600....which it always is. However on further inspection I find it is infact set to iso 1000.....Im desperately trying to think of a family member to blame...but Im having trouble finding one!
Cheers

bleirer

This is some good info about metering and exposure settings. It might be too basic for you at first but it gets into the interesting stuff pretty quickly.

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alphonso49uk

Thanks..Ill have a look

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

The Sony RX10 and RX10M2 had a built in ND filter - primarily to allow the use of reasonable shutter speeds for video in strong daylight, and also to avoid diffraction. I am pretty sure this is more common than one might think. It was one of the things people who purchased the RX10M3 and RX10M4 complained about.

Peterfiore Loc: Where DR goes south

With my Sony 10X IV, I use manual (M) mode and set auto ISO. This allows me to chose the Shutter speed I need and F stop. Try this, and see how your camera responds.

Ollieboy

Check your exposure compensation dial on top. It can move easily off your setting. I'm constantly checking mine.

Fredrick Loc: Former NYC, now San Francisco Bay Area

Just as an aside, the Fuji X100V has a 4 stop built in ND filter in their fixed 23mm F2.0 lens.

SuperflyTNT Loc: Manassas VA

I also wonder why you’re shooting everything at f/4. That’s great if you want very high shutter speeds in daylight, but unless you’re trying to minimize the DOF I don’t see why you’re not stoping down.

PHRubin Loc: Nashville TN USA

May I suggest: If you want f/4 (and for landscapes, I would use smaller, like f/8 or f/11) to limit depth of field and a particular shutter speed (I'm not sure why, but fast enough to efectively eliminate camera shake), use M (Manual), fixed shutter and aperture at what you prefer, and Auto ISO. Adjust shutter speed or aperture if the camera can't get an ISO low enough.

It seems you might brush up on the Exposure Triangle, and focus on the side effects other than exposure of adjusting each of the 3.

alphonso49uk

Well....Im pretty sure that on this camera F4 is the equivelent to around F8 on a dslr