So what is it? The photo you posted has gone missing.

I just looked at some of the evening shots that I took at my son's wedding in March, and . . . I retract what I previously wrote (in haste).

Towards the end of the evening I got bored with taking 'proper' shots and started playing. I set the camera to TAv mode and what I thought were appropriate enough settings for shutter speed and aperture, and fired away.

This is one of a few that I took at ISO 51200. Image quality is obviously degraded at such a high ISO, but I'm quite happy with it as a record shot.




Model PENTAX K-5
ISO 51200
Exposure 1/250 sec
Aperture 1.4
Focal Length 55mm (SMCP-DA* 55mm SDM)
Flash Used false

Hopefully he changed his username when he eventually realized that the one he was using was somewhat less than appropriate.

I think you were very brave going to ISO 8000 on the K5 when you were clearly disappointed with ISO 3200 images from the K20D.

There is no real reason to use such a high ISO at an important event. Why not use flash when you need more light.

What would you have said to the newly weds if your shots had turned out unusably noisy?

You smoking something you shouldn't again? Size does matter, it's 31mm.

Welcome to the forum.

I have only one Sigma OS lens, the 150-500mm DG OS HSM. Seeing a stable image in the viewfinder is highly beneficial to me because as hard as I try, I can't keep long lenses still when hand held, even though I know how to.

I am even considering replacing some of my Pentax lenses with Sigma equivalents whilst OS is still available from Sigma in Pentax fit.

Makes good sense to me. AP readers probably buy more Canon & Nikon kit than Pentax. Simples.

. . . is probably a mistake when choosing a lighting setup.

Spending some time researching your options is always worthwhile.

That said, the kit you have purchased will be OK for some situations, and no use at all for others, but the bulk of the kit can be re-used with different light sources.

My own preference is to use radio/infra-red triggered hot shoe flash units rather than mains powered monoblock heads as a very portable and usable option.

Good luck and be sure to show us some results please.

Which Sigma is it?

+1 from me. You risk destroying a £300 - £400 lens, that may not be easily replaced, by attempting what might be a simple and inexpensive repair for a professional repairer.

BTW, the fact that it wouldn't focus to infinity is no real problem for a macro lens, which is almost never used at infinity anyway.