The 41st TPBM Random Chat at the Namby Arms Pub

neil_r wrote in post #11229570
It has nothing to do with speed of focus (as some people try to say) as the term was used way before auto focus was even thought about.

The lower number the f/ stop = the wider the aperture = faster the lens.

So there is a relationship between the shutter speed and the aperture, therefore an f/1.2 will allow you a faster shutter speed in identical lighting conditions than an f/2.8, ergo the lens is faster.

(that is my take on it anyway )

<< EDIT >> Jon, I did not see your reply before I posted this, it's good to see that we are in agreement, even down to the dating of the term

There are fast-focusing lenses, although a fast lens does not necessarily refer to its focusing speed, as has already been explained. Also, it should be noted that an 85 f/1.2L and a 400 f/5.6 L are equally fast when thrown off a tall building. They will both have a velocity of 32 ft/sec for as long as they fall, and will fall a distance of 16 ft/sec^2 in that time.

Personal observation:

If you list an 85 f/1.2L for sale in the POTN classifieds, it will sell much faster than a 180 f/3.5L Macro.

Miniflash wrote in post #11229519
Good morning folks .
Today when Andy got to work he found out a co worker died of a heart attack in the subway on her way to work she was 58 ,just a reminder to live,love , laugh and be happy. You never know when your last breath will be .
I feel sad for his co workers , must be shocking for them all .
Hope today finds you all well .

You know Deb I think about this often. I'm 9 years older than Becca so I always assume I will go first. But lately with Bec having so many heriditary health issues with diabetes and the messed up cholesterol I worry that I may out live her. I would be lost without her as she is a great wife and an outstanding mother. The kids definitely benefit from her drive and teaching skills that I don't think I could ever match.

Belmondo wrote in post #11229679
There are fast-focusing lenses, although a fast lens does not necessarily refer to its focusing speed, as has already been explained. Also, it should be noted that an 85 f/1.2L and a 400 f/5.6 L are equally fast when thrown off a tall building. They will both have a velocity of 32 ft/sec for as long as they fall, and will fall a distance of 16 ft/sec^2 in that time.

Personal observation:

If you list an 85 f/1.2L for sale in the POTN classifieds, it will sell much faster than a 180 f/3.5L Macro.

Well with all of these new definitions for Fast, I have a new found confusion, LOL. I ought go share this with the lens forum folks to really stir up the pot.

Chet wrote in post #11229704
You know Deb I think about this often. I'm 9 years older than Becca so I always assume I will go first. But lately with Bec having so many heriditary health issues with diabetes and the messed up cholesterol I worry that I may out live her. I would be lost without her as she is a great wife and an outstanding mother. The kids definitely benefit from her drive and teaching skills that I don't think I could ever match.

I used to be fatalistic about such things, but with every day bringing me closer to it, I find myself being a bit more proactive than I used to be. I'm trying to lose a little weight, eat a little smarter, and so on. I have always assumed that Lois would outlive me, but we can never be positive. Lois and I are almost like a single person in so many ways. When one of us goes, the other one will definitely be a fish out of water. I don't dwell on the possibility of living alone for either of us, but it's very likely going to happen to one of us eventually; short of a catastrophic accident of some sort, it's inevitable. It's one of those things I just can't fathom.

neil_r wrote in post #11228591
Many years ago a secretary sent something I had written back to me with the words "For heavens sake Neil use print!"


Now I do and it is completely legible and as a result of practice just as fast as script

I only use print now, too. I don't know why I made the switch, though. It didn't change intentionally. It just happened.

BearLeeAlive wrote in post #11228881
Don't you have a really big numbered birthday coming up soon, something was up in the 60's isn't it?

:p I'm not quite there yet. My next one is 47.

thomascanty wrote in post #11229793
I only use print now, too. I don't know why I made the switch, though. It didn't change intentionally. It just happened.

With my dad being a doctor, his handwriting was notoriously bad... kind of rubbed off on me!!

Belmondo wrote in post #11229679
There are fast-focusing lenses, although a fast lens does not necessarily refer to its focusing speed, as has already been explained. Also, it should be noted that an 85 f/1.2L and a 400 f/5.6 L are equally fast when thrown off a tall building. They will both have a velocity of 32 ft/sec for as long as they fall, and will fall a distance of 16 ft/sec^2 in that time.

Personal observation:

If you list an 85 f/1.2L for sale in the POTN classifieds, it will sell much faster than a 180 f/3.5L Macro.

Actually, the initial distance traveled after 1 sec. will be 16 ft. It will continue to accelerate at the rate of 32 ft/sec^2 (1 g) until that last, abrupt, deceleration occurs.

Chet wrote in post #11229750
Well with all of these new definitions for Fast, I have a new found confusion, LOL. I ought go share this with the lens forum folks to really stir up the pot.

Just get your numbers right . . .

My Sig. I usually forget the letters after the initials so I mostly just emphasize the C and the B.

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thomascanty wrote in post #11229793
I only use print now, too. I don't know why I made the switch, though. It didn't change intentionally. It just happened.

If you had an apple newton or a psion with a stylus input, that forced you to print.

Harm wrote in post #11229255
AHEM!!!!!!

Sadly I get to see no bonfires tonight

I was going to list you, but I thought that if you celebrated GFD in Boston, it might not go over too well....

neil_r wrote in post #11229625
Many thanks and remember it is also Diwali (Deepavali)

OK, didn't know that one. So, uh, Happy Diwali, Neil and Harm and any other Diwalists out there.

Glad to report that after 24 hours of some very scary times, our Brandy is back on the path to recovery.

neil_r wrote in post #11230056
If you had an apple newton or a psion with a stylus input, that forced you to print.

I did have a couple Palm Pilots that had print recognition. Maybe that was what made me switch. It seems like that happened right about the time I was using those PDAs...

Skrim17 wrote in post #11230088
Glad to report that after 24 hours of some very scary times, our Brandy is back on the path to recovery.

That is very good news, Crissa!

Skrim17 wrote in post #11230088
Glad to report that after 24 hours of some very scary times, our Brandy is back on the path to recovery.

Good to hear!