I feel a poll coming on

You are maybe very lucky then Chris. I, like many here, have had to make AF adjustments for most of my lenses.

You are welcome, the APO version of that lens is the better one. I got some good images from mine but I replaced it with a DA* 300mm because I was only using the 300mm end of the Sigma.

If you have the money, you might consider one of the longer Sigma zooms. There are a couple on here for sale. I can particularly recommend the 150-500mm if you can find one at a good price.

Welcome to the forum Al.

I would personally go for your option B with perhaps 300mm at the long end.

I would also recommend you invest in a macro lens of around 100mm in focal length. You have some awesome looking bugs out there.

I once spent a weekend in the Kruger National Park armed only with a Pentax Super-A body, a 50mm 1:1.7 lens, and a 70-200mm 1:4 lens and can say that 200mm was nowhere near long enough for some of the animals I saw.

The crop factor of modern Pentax DSLR's might help getting a bit more reach from a 200mm, but 300mm will be even better.

I've checked an image from my 180mm lens with PhotoMe and it shows the Lens ID as 3+0+0 and correctly identifies it by name as a Sigma 180mm EX DG Macro lens.

An image from a 70-200mm sent to me by Mike has the lens ID as 8+23+0+0 but the lens is "Unknown". PhotoMe hasn't been updated for some time now so I'm guessing its lens database is out of date.

Hopefully this means that the two lenses (if I buy the 70-200mm) will have separate AF adjustments stored by the camera.

Yes, they're getting quite fashion conscious nowadays.

I think the leg bands serve to determine the range and numbers of various birds.

@Matt, I did wonder if the camera would use the lens ID tag.

@BB2, thanks for the feedback.

As per another thread, I am considering buying the Sigma 70-200mm 1:2.8 DG OS HSM lens for low light motor sport use because my longest f2.8 lens is the DA* 50-135mm. I also have a Sigma 180mm macro lens as well, hence the question.

If you own more than one Sigma lens and you've made AF adjustments in-camera to fine tune the lens/body auto focus, does your camera apply individual AF adjustments to each lens or does it apply the same adjustment to all of your Sigma lenses.

This might happen because Sigma lenses are not identified by name like the Pentax lenses are, and possibly others.

I've also asked the same question in my other thread so if you've answered there, thanks. I've asked the question again here because some users of multiple Sigma lenses may not visit that topic.

Why would you buy a K5-IIs, fit a FA 77mm Limited lens to it, and then shoot JPG? It doesn't make sense to me. PEF/DNG image files hold much more detail and dynamic range than JPG's.

One more question before I decide whether or not to buy this lens.

I need to know whether any AF offset that might be needed will be correctly applied to this lens.

The K5 (and other bodies) can store AF adjustments for up to 20 lenses. Given that I have determined that Sigma lenses are not identified by name in Lightroom, if I were to have more than one Sigma lens, will AF adjustments that I set for one Sigma lens be applied to all Sigma lenses rather than each lens have individual adjustments stored on the K5.

I ask because I already have a Sigma 180mm Macro lens.

If any of you have more than one Sigma lens, could I ask you to check and let me know please.