# Thread: What does ft means

1. ## What does ft means

Hello(: I've got a new lens recently (18-200mm) however , I do not know what's the function of this particular part of the lens that has the word ' ft ' beside it. It ranges from 0.5 to infinity. Is it some focusing thing?

2. ## Re: What does ft means

That's the focusing distance scale. You should also find 'm' beside 'ft'.

Btw, welcome to ClubSNAP.

3. ## Re: What does ft means

It is an abbreviation for "feet". It's a measure of distance. Lots for you to read up on online.

4. Thank you(:
I tried to find online though. Anyway, is it only useable for manual focus ?(:

5. ## Re: What does ft means

foreign talent?

just jk. as mentioned by the rest... it is indeed feet

6. ## Re: What does ft means

Originally Posted by Pinkdots
Thank you(:
I tried to find online though. Anyway, is it only useable for manual focus ?(:
It is usable for both auto focus (AF) and manual focus (MF). Basically what it does is simply to give you feed back of how far the subject is (in ft and m) that you're focusing on. This is useful if you want to calculate DOF (depth of field) or use hyperfocusing.

7. ## Re: What does ft means

Originally Posted by ziploc
It is usable for both auto focus (AF) and manual focus (MF). Basically what it does is simply to give you feed back of how far the subject is (in ft and m) that you're focusing on. This is useful if you want to calculate DOF (depth of field) or use hyperfocusing.
And also if you're using those manual flash, distance is used to calculate the aperture setting

8. ## Re: What does ft means

Originally Posted by fatigue
And also if you're using those manual flash, distance is used to calculate the aperture setting
Yup that's right. Otherwise for TS, she can just ignore this scale if not using it.

9. ## Re: What does ft means

Reading all these makes me sweat..

10. ## Re: What does ft means

you can consult bonrya about feet. she is an expert on it

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