calibrating lens (Page 2): :sm24: :sm24:...

imagemeister Loc: mid east Florida

Bill_de Loc: US

Just curious. The Nikon D7100 can store 9 calibrations, and you select the one for the attached lens.
Is it possible to make and store 9 caibrations for the same lens at different focal lengths?

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jamesl Loc: Pennsylvania

lukevaliant wrote:

i tried in search to find answer first ,but could not find one.if i calibrate nikon 200-500 mm lens to my camera (d7100) ,will i have to calibrate the next lens i attach to camera?i don't understand if i am calibrating the camera or the lens.i'm sorry if it is a stupid question but i don't want to open a new can of worms!! thanks in advance,luke

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No. The adjustments are saved in the camera so they will be there for when you attach the lens that you calibrated.

therwol Loc: USA

Bill_de wrote:

Just curious. The Nikon D7100 can store 9 calibrations, and you select the one for the attached lens.
Is it possible to make and store 9 caibrations for the same lens at different focal lengths?

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No. One adjustment per lens. From Nikon:

"Only one adjustment can be made per lens, we recommend the longest focus distance which is achievable for your test setup."

Full article. https://www.nikonimgsupport.com/na/NSG_article?articleNo=000043897&lang=en_SG#:~:text=Only%20one%20adjustment%20can%20be

TriX Loc: Raleigh, NC

therwol wrote:

No. One adjustment per lens. From Nikon:

"Only one adjustment can be made per lens, we recommend the longest focus distance which is achievable for your test setup."

Full article. https://www.nikonimgsupport.com/na/NSG_article?articleNo=000043897&lang=en_SG#:~:text=Only%20one%20adjustment%20can%20be

Can’t speak for other brands, but Canon allows two adjustments per zoom lens.

Bill_de Loc: US

therwol wrote:

No. One adjustment per lens. From Nikon:

"Only one adjustment can be made per lens, we recommend the longest focus distance which is achievable for your test setup."

Full article. https://www.nikonimgsupport.com/na/NSG_article?articleNo=000043897&lang=en_SG#:~:text=Only%20one%20adjustment%20can%20be

Yup! I must have skimmed over that part.

Thanks very much for the reply.

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CamB Loc: Juneau, Alaska

lukevaliant wrote:

i tried in search to find answer first ,but could not find one.if i calibrate nikon 200-500 mm lens to my camera (d7100) ,will i have to calibrate the next lens i attach to camera?i don't understand if i am calibrating the camera or the lens.i'm sorry if it is a stupid question but i don't want to open a new can of worms!! thanks in advance,luke

It seems like calibrating your lenses was all the rage about eight years ago. It was talked about often on UHH. The vast majority of posters, then and even todays thread, say don't even try unless you are having a problem, and even then you might just make it worse. If your camera won't focus right send it to the shop. When you buy an expensive lens it should be sharp.
...Cam

TriX Loc: Raleigh, NC

CamB wrote:

It seems like calibrating your lenses was all the rage about eight years ago. It was talked about often on UHH. The vast majority of posters, then and even todays thread, say don't even try unless you are having a problem, and even then you might just make it worse. If your camera won't focus right send it to the shop. When you buy an expensive lens it should be sharp.
...Cam

You can’t hurt anything by trying calibration - if you don’t like the result, either simply turn it off or set to zero. As far as an expensive lens being sharp, that’s not the issue - it’s a autofocus error problem. The purpose of calibration is to compensate for AF error.

So many opinions, so little actual testing/experience before judging the value of calibration.

CamB Loc: Juneau, Alaska

TriX wrote:

You can’t hurt anything by trying calibration - if you don’t like the result, either simply turn it off or set to zero. As far as an expensive lens being sharp, that’s not the issue - it’s a autofocus error problem. The purpose of calibration is to compensate for AF error.

So many opinions, so little actual testing/experience before judging the value of calibration.

You're right. Looked into it long ago, tried it on a lens or two. Not easy and lenses didn't need it. Fifteen or twenty nikon lenses over the years. They have all come from Nikon sharp and focusing fine. But there are probably some bad lenses out there. Maybe I've just been lucky.

imagemeister Loc: mid east Florida

CamB wrote:

You're right. Looked into it long ago, tried it on a lens or two. Not easy and lenses didn't need it. Fifteen or twenty nikon lenses over the years. They have all come from Nikon sharp and focusing fine. But there are probably some bad lenses out there. Maybe I've just been lucky.

Yes, lucky or not looking / testing close enough. Long focal length f2.8 and f4 lenses stand to benefit the most - f6.3, not so much !

User ID

TriX wrote:

Can’t speak for other brands, but Canon allows two adjustments per zoom lens.

Well, will wonders never cease ....

Really too bad SLR development is ended or mebbe they could have squeezed it up to three before toadally schidtcanning the whole idea.

User ID

TriX wrote:

You can’t hurt anything by trying calibration - if you don’t like the result, either simply turn it off or set to zero. As far as an expensive lens being sharp, that’s not the issue - it’s a autofocus error problem. The purpose of calibration is to compensate for AF error.

So many opinions, so little actual testing/experience before judging the value of calibration.

The need for it and value of doing it are real. Problem is that the crutch provided is just a bandaid on a severed artery.

User ID

CamB wrote:

It seems like calibrating your lenses was all the rage about eight years ago. It was talked about often on UHH. The vast majority of posters, then and even todays thread, say don't even try unless you are having a problem, and even then you might just make it worse. If your camera won't focus right send it to the shop. When you buy an expensive lens it should be sharp.
...Cam

Yup ! You want your camera to focus your pwecious lenses dead on. Which is why its so laffable that so many Hawgsters are so stubbornly clinging to their SLRs.

therwol Loc: USA

User ID wrote:

Yup ! You want your camera to focus your pwecious lenses dead on. Which is why its so laffable that so many Hawgsters are so stubbornly clinging to their SLRs.

Upgrading to mirrorless isn't free and may involve buying new lenses and accessories. For example, I have almost three grand invested in a D850 body plus a bunch of screw drive lenses that work perfectly well on that body but which won't autofocus on any of the Nikon mirrorless bodies. I don't care to spend the money in retirement on a mirrorless body and lenses to replace what I'm already using. Younger people who may have more disposable income may choose to make the switch.

If you tell me that your DSLR takes great pictures, as does mine, I'm all for you. If you tell me that you have been ecstatically happy switching to mirrorless, I'm all for you. Whatever satisfies you.

TriX Loc: Raleigh, NC

User ID wrote:

The need for it and value of doing it are real. Problem is that the crutch provided is just a bandaid on a severed artery.

You’re right. In general, mirrorless cameras do not require calibration (although some Sony mirrorless cameras still have it). Personally, I would be glad to trade my Canon 5D4 for an R5, but almost 4K$ is a lot to pay for the advantages, few of which, such as better AF for BIF, or viewing a histogram in real time, and IBIS (which many of my lenses already have) are really 4K worth of importance to me. I have a mirrorless body and a full complement of lenses which I use all the time, but honestly, since all my lenses are by the body of the manufacturer (none of the advantages of using MF vintage or 3rd party lenses), rather than seeing the advantages, I’m mostly irritated about the poor battery life. So, I’m not throwing my copy of Focal away just yet. In fact, one of the features of Focal - being able to test acuity of my lenses and acuity vs aperture, I really miss on my MILC system.