Sinaron-N vs APO-Sinaron-N

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What exactly is the difference between the older Sinaron N and the newer APO Sinaron-N? Specific issues are:

1. Number of elements/groups 2. Image circle

-- Carlos Co (co@che.udel.edu), February 19, 1999

Answers

You need to be far more specific.

The difference between a very late N that is multi coated is virtually nothing. The difference between an early N that is not multi coated is substantial.

The difference is not in # of elemnts or circle of coverage. It is in the performa

-- bob salomon (bob@hpmarketingcorp.com), February 23, 1999.


You need to be far more specific.

The difference between a very late N that is multi coated is virtually nothing. The difference between an early N that is not multi coated is substantial.

The difference is not in # of elemnts or circle of coverage. It is in the performance

The lens is a Sironar not a Sina

-- bob salomon (bob@hpmarketingcorp.com), February 23, 1999.


Bob, if you happen to be watching this, could you give an approximate serial number for the switch?

-- John O'Connell (oconnell@siam.org), February 23, 1999.

We don't have the serial number range for the switch and it is not needed.

All Sironar N lenses that are multi coated are marked multi coated on the lens. All that are not multi coated are NOT marked multi coated. There is no doubt or question. It is if it says so it isn't if it doesn't say so.

Same with Granda

-- bob salomon (bob@hpmarketingcorp.com), February 23, 1999.


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