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AI lens on D5100: Infinity focus?

Tony1337

US
10 posts

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Tony1337 Registered since 20th Jan 2013
Thu 07-Feb-13 09:10 AM

I have heard rumors on the Internet that AI lenses cannot be focused at infinity on entry-level Nikon DSLRs. Can someone who uses AI lenses on their entry-level Nikon camera either confirm or deny this, based on personal experience?

blw

Richmond, US
27304 posts

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#1. "RE: AI lens on D5100: Infinity focus?" | In response to Reply # 0

blw Moderator Awarded for his high level of expertise in various areas Nikonian since 18th Jun 2004
Thu 07-Feb-13 10:30 AM

This is not true. The entry level DSLRs have exactly the same mount parameters as every other Nikon SLR, including the 1959 Nikon F, and they focus to infinity with all lenses.

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Brian... a bicoastal Nikonian and Team Member

My gallery is online. Comments and critique welcomed any time!

Tony1337

US
10 posts

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#2. "RE: AI lens on D5100: Infinity focus?" | In response to Reply # 1

Tony1337 Registered since 20th Jan 2013
Thu 07-Feb-13 11:42 AM

Just making sure: Do you have an entry-level DSLR and an AI lens which work perfectly fine together at infinity?

blw

Richmond, US
27304 posts

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#3. "RE: AI lens on D5100: Infinity focus?" | In response to Reply # 2

blw Moderator Awarded for his high level of expertise in various areas Nikonian since 18th Jun 2004
Thu 07-Feb-13 12:29 PM

Yes.

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Brian... a bicoastal Nikonian and Team Member

My gallery is online. Comments and critique welcomed any time!

Leonard62

Hatboro, Pa, US
3967 posts

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#4. "RE: AI lens on D5100: Infinity focus?" | In response to Reply # 2

Leonard62 Gold Member Awarded for excellent contributions and sharing his in-depth knowledge and experience with the community, especially of Nikkor Lenses Writer Ribbon awarded for his contributions to the Nikonians Resources articles library Nikonian since 15th Mar 2009
Thu 07-Feb-13 12:46 PM

I regularly use 8 to 10 AIS, AI and non-AI lenses on my D3200 and D5100. There is absolutely no problem reaching ∞ on any of them. Plus the hard ∞ stop is right on the money. Whoever is spreading this rumor either has broken equipment or is a troll and doesn't know what they're talking about.

Len

Visit my Nikonians gallery.

MEMcD

US
28347 posts

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#5. "RE: AI lens on D5100: Infinity focus?" | In response to Reply # 0

MEMcD Moderator In depth knowledge in various areas Nikonian since 24th Dec 2007
Thu 07-Feb-13 07:25 PM

Hi Tony,

Welcome to Nikonians!
You are confusing Nikon with Canon.

All Nikon DSLR's support AI, AI modified, and AIS MF lenses including the ability to focus to infinity without an adaptor.

To use a Canon MF (FD) lens on a Canon DSLR you will need an adaptor with a lens element to support focus to infinity.

I can confirm that AI modified, AI, and AIS MF lenses focus to infinity on Nikon entry level DSLR's as well as the Pro bodies.
Keep in mind that the entry level DSLR's do not support metering when used with MF lenses without CPU's. You will be limited to Manual exposure mode, Manual ISO, and Manual or Non-TTL Auto flash modes.
The D_ series, D_00 series, and D7000 support metering with AI, AI modified, and AIS type MF lenses without CPU's.
Good Luck and Enjoy your Nikons!

Best Regards,
Marty

G