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Through-the-lens metering (TTL) is a feature in many modern cameras that allows the user to measure light levels through the lens that will capture the picture.

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1answer
778 views

Can I use the on-camera flash along with an off-camera SB-700 on my Nikon D5000?

I recently bought an SB-700 flash for my D5000 and I was wondering what would be my options to use this as an off-camera flash along with the on-camera flash. Is it possible? TTL cable, wireless ...
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2answers
2k views

Are there any radio flash triggers capable of P-TTL?

All the popular radio TTL flash triggers, like PocketWizard or RadioPopper, seem to be only available in Nikon and Canon flavors. Are there any models capable of transmitting Pentax P-TTL data?
10
votes
1answer
604 views

Why isn't TTL metering accurate when using a non-electronic lens?

I recently bought a Lensbaby lens and I played with it a lot. Then lens is awesome but I have one big and annoying problem and is that TTL metering fails miserably when using P, TV and M modes. I ...
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1answer
378 views

Will the “Pixel Knight TR-332” radio flash trigger work with a Canon 350D?

I am using a Canon 350D/XT and found some information on web that the Pixel Knight TR-332 radio flash may be incompatible with that particular Canon camera due to DIGIC II and lack of Flash functions ...
4
votes
1answer
1k views

How do I read the flash distance scale on the Canon 580EX II?

My Canon 580EX II has a distance scale running from 0.5m to 18m. When the flash is in manual mode, a single segment of the distance scale illuminates to indicate the maximum effective range for my ...
6
votes
1answer
294 views

Are there risks in using a third-party TTL cable?

I see that the cables that support TTL offered by manufacturers such as Canon and Nikon for using a flash off-camera are fairly spendy and that there are some third-party cables at a fraction of the ...
13
votes
3answers
868 views

What was my flash power?

When I am using a Canon flash in the E-TTL mode, how can I tell which flash power the E-TTL magic chose? For example, if I got a correct exposure in the E-TTL mode, can I easily choose the same flash ...
20
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4answers
27k views

What does TTL mean?

I'm new to photography and I see the term TTL all over the place. What does it mean? And how do I use it to make my pictures better?
6
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1answer
345 views

Can an E-TTL II cable trigger a speedlite in Manual mode

Essentially, if you own an E-TTL II (or presumably iTTL) cable of a certain length/type, is there any reason to also own a manual PC-sync cable of a similar length/type, or can the camera be fired in ...
9
votes
2answers
938 views

Inexpensive flash with full ETTL support

I've been planning to get the Canon 430EX, but I'd love to save a little cash, so I started looking at other 3rd party flashes. I've found a few that claim to have ETTL II support, but being so much ...