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Manual Focusing Question
Ok I am a newbie to the world of DSLR cameras I am familar on how to use but last night I was looking at a Sigma 70-300 w/marco lens (yes I know it's manual focus) and here in lies my question I got home and was playing around with my Nikon D40 and switched it to manual focus and turned the program buton to M(manual ). and tried to focus on an object but no matter what I did it would not focus. Am I missing a step here please assist...

Comments (13)

The Manual program wheel gives manual exposure, i.e. you set aperture and shutter speed yourself. Not manual focus - not sure what you need to do to allow that, consult the manual (no pun intended...). Was the subject in range of the lens?.

Alex.

Http://alexandjustine.smugmug.com/..

Comment #1

Thanks I tried to focus at different distanced anywhere from 10- 40 feet...

Comment #2

Motownmadmann wrote:.

Ok I am a newbie to the world of DSLR cameras I am familar on how touse but last night I was looking at a Sigma 70-300 w/marco lens (yesi know it's manual focus) and here in lies my question I got home andwas playing around with my Nikon D40 and switched it to manual focusand turned the program buton to M(manual ). and tried to focus on anobject but no matter what I did it would not focus. Am I missing astep here please assist..

I'm going to assume that you were turning the focus ring on the lens barrel to change the focus position. With that, just pick a spot somewhere in that distance range and adjust the lens slowly until the desired subject is as sharp as possible. The focus indicating LED in the viewfinder should light up when the subject is sharply focused, providing some additional indication..

'Here, look at the monkey. Look at the silly monkey!'.

Tom Younghttp://www.pbase.com/tyoung/..

Comment #3

Do you mean the ring at the end of the lens no I was not turning that I didnt think it turned cause when in auto focus mode it doesnt turn. from wht you wrote I am assuming that it turns when switched to manual ( this would make sense now but at the time I didnt even think to turn that) hmm wish the d40 manual advised on manual focusing of the camera...

Comment #4

Is this the lens you have?.

Http://www.bhphotovideo.com/...EG/Sigma_509306_70_300mm_f_4_5_6_DG_Macro.html.

If so there's probably a switch ON THE LENS to select auto-focus or manual - if so then flip the switch to manual..

Now in order to focus the lens YOU MUST turn the ring closest to the front end of the lens..

Good Day,Roonal.

'Money doesn't buy happiness, but it makes for an extravagant depression' by golf tournament sportscaster..

Comment #5

I think your question is messed up..

Are you talking about a Sigma lens that is a decade old?.

And, why did you set the camera on manual exposure? What's this got to do with focussing?.

Overall, the Nikon D40 and D40X are designed to give trouble when using any lenses other than certain Nikon lenses and a few designed for it by other lens companies, so if you are using a manual focus lens from a decade ago, it's no surprise..

BAK..

Comment #6

BAK wrote:.

I think your question is messed up..

Are you talking about a Sigma lens that is a decade old?.

No I am not talking about a decade old Sigma I clearly stated that it was the kit lens that came with the D40.

And, why did you set the camera on manual exposure? What's this gotto do with focussing?.

Did you even read the question I explained that I was NEW to the world of DSLR and was not sure how to use the manual focus and was looking at a new sigma lens that I knew is manual focus and wanted to try on the KIT LENS......

Not every one that picks up a new camera instantly understands everything and how to operate everything on the camera. this is a beginners forum please respect that many might not be on the same knowledge level as you for the camera one has..

Thanks to the other that answered the question asked. with out being condensending sounding and blatently RUDE with their resposne..

Overall, the Nikon D40 and D40X are designed to give trouble whenusing any lenses other than certain Nikon lenses and a few designedfor it by other lens companies, so if you are using a manual focuslens from a decade ago, it's no surprise..

BAK..

Comment #7

BAK wrote:.

I think your question is messed up..

Are you talking about a Sigma lens that is a decade old?.

No I am not talking about a decade old Sigma I clearly stated that itwas the kit lens that came with the D40.

You didn't mention the kit lens at all, you mentioned a Sigma 70-300. The kit lens on the Nikon D40 is an 18-55 zoom which autofocusses..

And, why did you set the camera on manual exposure? What's this gotto do with focussing?.

Did you even read the question I explained that I was NEW to theworld of DSLR and was not sure how to use the manual focus and waslooking at a new sigma lens that I knew is manual focus and wanted totry on the KIT LENS......

Roonal's post above gives very clear instructions. It sounds like you are confusing the manual EXPOSURE button on the top of the camera (where you have to set the aperture and shutter speed yourself to get the right exposure) with manual FOCUSSING (where you have to turn the front of the lens yourself to get the object in focus)..

A suggestion: if you want people to answer questions for you, be polite, it will work better..

Best wishesMike..

Comment #8

... the answer is on page 28 of the user's manual that came with your camera.Mike..

Comment #9

Thanks when I initally read the manual I didnt remember seeing it and sorry if I sounded short with your response. I appreciate everyone that posted a response and now I know how to manual focus. THANKS..

Comment #10

Motownmadmann wrote:.

...a Sigma 70-300 w/marco lens (yes I know it's manual focus)....

...a new sigma lens that I knew is manual focus....

Don't refer to your lens as "manual focus". You're wanting to know how to manually focus your lens, but it is not a manual focus lens..

I (and I assume a few others) think of the descriptor "manual focus lens" as referring ONLY to lenses that can ONLY BE manually focused ie. they don't have auto-focus capability, which typically means OLDER lenses..

... when I initally read the manual I didnt remember seeing it ....

Instruction manuals contain a lot of info - easy to miss stuff - but at the same time though, for all the info, sometimes things may not be elaborated upon or explained clearly enough..

Continue to ask questions..

BTW - Deciding to be adventurous and try your camera in Manual Mode (or any of the other non-fully automatic modes) - even though you were initially confused as to what Manual Mode actually meant  - is a good thing..

Good Day,Roonal.

'Money doesn't buy happiness, but it makes for an extravagant depression' by golf tournament sportscaster..

Comment #11

Re>i clearly stated that it was the kit lens that came with the D40<.

Bovine excrement..

Now you've got things even more confused. Do you think the Sigmas lens came withyour camera, or were you talking about a completely different lens than the Sigma?.

Anyway, people more patient than I can answer your question..

BAK..

Comment #12

Forget it I got my answer and know how to manually focus my lens...

Comment #13

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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