Panning with SR

Just been reading a thread in another forum where a K10D user says the SR system is OK for panning and he is getting some excelent results.

My own understanding of the SR is that it wouldn't/shouldn't work for panned shots.

Comments from the expets please.

So what would the SR system make of a panned image? My feeling is that it should be switched off as it cannot possibly reduce shake when there is so much "shake" being deliberately made. For the opposite reason it is switched off when using a tripod - otherwise it starts trying to compensate for shake that doesn't exist.

Still, both situations could have creative potential.

as I understand it, the SR system works by using sensors in the body to detect camera movement, and moves the CCD to compensate.

Panning involves a lot of movement in one direction, so there are two possibilities as to what will happen that I can see

1. The SR gets confused, throws it's rattle out of the pram and causes all sorts of issues because it can't move the sensor far enough.

2. The SR throws the sensor to full horrizontal deflection very quickly, but vertical deflection is still available so it continues to work and provides a useful bonus

not sure which I think will happen, but it's worthy of a try.

That was my thought as well, and formed half the reply I made in the other forum, the guy hasn't responded yet.

There are image stabilisation systems 'out there' that have the option of single dimension stabiliation - but that option is not present on the Pentax clearly. I wonder if they could add it as a firmaware update?

BTW the pentax SR is described as three dimensional - which I guess means horizontal, vertical and rotational. The latter is clever (and not available in lens based system C***n and N***n please note) but is not realy a third dimension.

but if my suggestion 2 is indeed what happens then you've effectively got automatic switching to 1 dimensional correction.

There's only one way to find out, someone's going to have to go take some panned shots with and without SR and see what happens. I know, I know, its a chore, I know how much we all hate using our K10D's, but I think it has to be done.

Does that mean your offering to do the test?



PS; whats the plural of Mongoose? maybe you could shoot some Mongeese or Mongooses or even some Mongoosi......
PPS just shoot a couple!

I once read a joke about a clerk who did not know the correct plural of mongoose.

The clerk reportedly sent the following letter: ”Dear Sir, Please send me a mongoose. Oh, by the way, send me another one, too.”

You captured my interest so I went to the on-line source and you can do the same by surfing over to http://en.wikipedia.org/wiki/Mongoose and hope it helps to answer your questions about this creature.

the correct plural of Mongoose is Mongooses, since Goose and Mongoose have no actual relationship other than phonetic.

Unfortunately there aren't very many Mongooses around in Cambridgeshire, so unless I can figure a way to take a panned self portrait I'll have to try the SR panning on something else lol.

IMHO SR should be on during long exposure shorts from hands only. Panned shots have to be very clear and sharp because in most cases the result image is landscape, and arranged to horizon by bubble on tripod. In this case the result is good and compilation process is easy.

I've found SR better when using relatively short exposure times. When using shutter speeds longer than about 1/10s there may be gradual, incremental errors within the SR (it's having to translate a sensed movement into corresponding CCD shift - any small errors will accumulate).

However, when using telephotos the SR comes into its own. I've managed a pinsharp handheld shot at 1/50s with a 500mm lens
Matt

I think Ialex has misunderstood the term 'panning'. He's reading it as panoramic, and specifically stitching several images together to make a wide one, like this:




Hence "...arranged to horizon by bubble on tripod. In this case the result is good and compilation process is easy".


Ialex, the discussion relates to the technique 'panning', which is when you follow a moving subject, for example a flying bird, so you try to keep the subject (bird) sharp, but blur the background.

Hope that helps,
Dan

I have handheld shots at 1/4 and more and it's good enough taking into account place and lightening but I agree it's not a universal remedy because edges are blurred. I have sent some links for those pictures into another subject.

https://www.pentaxuser.com/forum/viewtopic.php?t=3788

You are not the first person who talk me about good results of using SR with telelenses so it becomes more then truth; it's almost a fact for me. But I still have no telephoto lenses for pentax to try this out.

Big thanks. I have seen that kind of pictures but never even tried to do this myself.

Nice stitch job Daniel.