F Stop, Aperature.

[itsbob]

Ok, got a camera for work and it's been awhile.

Is the f-stop setting for DSLR different from 35mm?

I'm trying to take a flash photo of BG, and trying to zoom into her face. Shutter opens, FLASH! wait.. shutter closes.. Try to manually set shutter speed, try to manually set f:stop.

When you zoom in apparently the aperature decreases in size (increases in number) and your minimal f:stop is HUGE when you zoom in to the max.

Now, my 35mm wasn't like this. For one the f:stop was on the lens not the body, and if you were at 30mm or 210mm the f:stop didn't shrink or enlarge.

ANyone care to explain? This DSLR photography is WAAAY different than 35mm so far. A little frustrating when I couldn't figure out how to take a simple portrait with flash.

ANYways.. Now a proud new (kind of) owner of a Nikon D80, SB600, and a couple lenses. (shame they couldn't install the sound of the motor drive cranking the film onto the spool).

 

[jbr13]

THe minimal F stop is increasing in number as you zoom right? THis is because the minimal Fstop for your lense is probably 3.5-5.6. So at minimal zoom you would be 3.5 and as you zoom in it will increase up to 5.6. You can always go to a higher number but you can't go under. If you use a lens with 2.8 it would be 2.8 all the way threw.

J

 

[MrX]

Wirelessly posted (Blackberry: BlackBerry8330/4.5.0.56 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/104)

 

[itsbob]

THe minimal F stop is increasing in number as you zoom right? THis is because the minimal Fstop for your lense is probably 3.5-5.6. So at minimal zoom you would be 3.5 and as you zoom in it will increase up to 5.6. You can always go to a higher number but you can't go under. If you use a lens with 2.8 it would be 2.8 all the way threw.

J

So if I put an old Nikkor lens on the camera where the f stop is on the lens, I take it it overrides the lens and is still controlled internal to the camera body?

Did just read where all the old lenses are 1.5 power. 100mm lens will actually be a 150.

This is going to be fun

 

[crf291]

So if I put an old Nikkor lens on the camera where the f stop is on the lens, I take it it overrides the lens and is still controlled internal to the camera body?

Did just read where all the old lenses are 1.5 power. 100mm lens will actually be a 150.

This is going to be fun

The f-stop is a physical limitation of the lens and i'm pretty sure even so with the old len's. If you look on the front of your lens you should see a something like 1:3.5-5.6 printed on it. This list a range of maximum aperture, because this may depend on how far one has zoomed in or out. These aperture ranges therefore refer only to the range of maximum aperture, not overall range. A range of f/3.5-5.6 would mean that the maximum available aperture gradually changes from f/3.5 (fully zoomed out) to f/5.6 (at full zoom). Remember this camera is electronic and so the camera and lens communticate letting each other know what they are capable of doing so the camera can automatically make these changes.

The more expensive len's will not list a range (1:2.8) Therefore it will be 2.8 through the full ammount of zoom.

This is all the same a JBR said. You might be overthinking it and confusing yourself.

 

[hvp05]

The more expensive len's will not list a range (1:2.8)

There's the reason right there: lens value. Buy better lenses, get constant apertures - and usually a wider f-range, too.

Did just read where all the old lenses are 1.5 power. 100mm lens will actually be a 150.

That's due to frame cropping. Most DSLRs have done it because their sensors are smaller than a 35mm negative. Again, dish out more bucks and you can get 'full frame' where there is no conversion factor.

 

[Dead Eye]

Put camera AND the flash in manuel mode. It sounds like the flash is in ETTL mode and making adjustments to your lens apature.

Now put your shutter speed at 1/200 and apature at f8. Put power on flash at full . Take a shot and look at lcd. Adjust only the apature to control the exposure. Or if you have a flash meter set the apature that way.

Cheers~ Dead Eye

 

[itsbob]

Thanks all!

THis is a camera for work, so have it home to learn how to use it. Glad I did, would have been embarassing going to use it the first time at work and not know what I was doing.

I think BG MAYBE impressed enough that I may see one of these in my future. Maybe TEN years from now, but that would still be the future!

 

[hvp05]

Maybe TEN years from now...

If anyone were to still own a D80 ten years from now they'd probably pay you to take it off their hands.

 

[itsbob]

If anyone were to still own a D80 ten years from now they'd probably pay you to take it off their hands.

28 years later I still have my Nikon FE, lenses, teleconverter and assorted Cokin filters.

As long as the SD card doesn't go away I don't see thy the camera would.

 

[hvp05]

As long as the SD card doesn't go away I don't see thy the camera would.

Uh, JBR brought it up in Jeff's thread: the D80 has already been discontinued and succeeded. Digital moves at breathtaking speed, as it does in all things. So 10 years from now a D80 could take pictures as well as it does now, but there will be so many other options ahead of it that the D80 will be considered a relic.

Film is still viable because there are some things a trained individual can obtain from film that they can not currently find in digital. Film holds an allure, much like LPs over CDs and MP3s for certain music aficionados.

 

[Dead Eye]

Uh, JBR brought it up in Jeff's thread: the D80 has already been discontinued and succeeded. Digital moves at breathtaking speed, as it does in all things. So 10 years from now a D80 could take pictures as well as it does now, but there will be so many other options ahead of it that the D80 will be considered a relic.

Film is still viable because there are some things a trained individual can obtain from film that they can not currently find in digital. Film holds an allure, much like LPs over CDs and MP3s for certain music aficionados.

Sheet film rules the big pic.

In search of an 8x10 sensor to replace the ground glass !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ohhh well the techies will do it in a few decades.

 

[hvp05]

Sheet film rules the big pic.

Yes, I know. Medium and large format can still produce spectacular results. A friend of a friend shoots medium and lovingly carries his 50 lbs. of gear wherever he wants to shoot.

And I wouldn't be surprised if digital begins to conquer that arena within the next decade.