Program Line refers to the relationship between shutter speed and aperture and what emphasis a given mode applies.

A standard line is the straight relationship of one to the other. Open aperture by one stop and you move to a faster shutter speed by one stop.

An action based program line will hold onto high shutter speeds and change the aperture instead until the lens has no more apertures, before moving to a slower speed.

A landscape based program line will hold onto small apertures as much as possible before the shutter speed becomes too slow and it has to move to wider apertures.

Older cameras have nice little graphs in their instruction manuals showing what the camera will actually select at a given EV value (light level).

Not sure what you're asking here as in the quote given there is no mention of a photo club?

I thought this was quite interesting:
http://pentaximaging.com/about/press/273/PENTAX_and_RICOH_Announce_Integration_o...

A wedding is a very stressful, fast and unforgiving job. Usinf unfamiliar equipment is IMO a huge mistake. If you are going to do it, then use your own Pentax gear, but perhaps hire a backup body from SRS to be safe. Another K-7 would be ideal.

You can shoot most if not all of the wedding using the Tamron 17-50mm and maybe the 30mm f1.4 for any low light stuff in the evening. You have longer lenses if you want them for tighter portraits earlier in the day.

Study a wedding photography book for posing ideas, make sure you are well practised with your camera and have an assistant with you to help organise people.

Forget the Canon, it won't help at all. I would go further and refuse the job if I couldn't use my own gear.

Hope that helps!

Personally I find them less than zero efficiency (worse than useless) for this very reason.

It's worth noting some exceptions to the total compatibility.

The instruction books for the ES and ESII apparently warn against using 50mm f1.4 and 55mm f1.8 Super takumar lenses that have counter-clockwise operating diaphragm rings. See page 113 of The Asahi Pentax Screw Mount Guide for fuller details.

The f1.4 lens mentioned was redesigned from 8 to 7 elements and the same book reports an improvement in image quality as a result.

This shot of Whitby is from the Abbey, looking across towards the town.
[IMG]http://i240.photobucket.com/albums/ff250/johnriley1uk/038Whitby800px.jpg[/IMG]
Pentax K-5
SMC Pentax-DA 18-135mm WR
1/800s
f8
ISO 400
-0.3EV
135mm
Centre Weighted Metering
14 04 2012 14:47

All Spotmatics are fully compatible with the 50mm f1.4 lens. It's only the S1a that needs to have the right colour R on the rewind crank.

Cameras earlier than the S1a should not be used with the f1.4 lens.

He's got an out-of-the-box style in his reviews and he shows in this review how we can develop from rejection of something new, through a growing grudging acceptance to a raised eyebrow of respect for the design.

Unfortunately you have to watch the whole review until you realise that he actually rather likes it.

There's nothing alledgedly about PentaxUK, who will be looking in as time allows.

Replies may take a liitle while, but it's a positive line of communication so it would be nice to take it in the way it's intended - to be helpful.