Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Reply
 
Thread Tools Rate Thread
Old Saturday 9th September 2017, 12:09   #1
Dorian Gray
Registered User

 
Join Date: Dec 2007
Location: Paris
Posts: 162
Nikon SE Porros – similarities and differences

I have a Nikon 8x32 SE that lives up to its reputation as a fine and practical instrument.

I’m wondering how the 10x42 compares, especially in regard to being able to compensate for my myopia (slightly over –6D) at infinity. The 8x32 can (barely) focus at infinity for me. Would the 10x42 differ in this regard? What about the 12x50?

If we know the eyepieces and focusing mechanism are identical (are they?), then I suppose there will be less focusing beyond infinity in the binoculars with longer focal length objectives.

There may be some sample variation too, of course.

Thanks for any info about this.
Dorian Gray is offline  
Reply With Quote
Old Saturday 9th September 2017, 19:59   #2
jring
Registered User

 
Join Date: Aug 2015
Location: Germany
Posts: 1,264
Hi,

my SE 10x42 are very nice in every aspect except water proofing and as made some owners of teutonic alphas jealous. Unfortunately I can't say anything about its ability to focus to infinity for you - my eyes are still ok without glasses.

Speaking of which, you should be able to use the SE with glasses just fine - eye relief is really long.

Joachim
jring is offline  
Reply With Quote
Old Sunday 10th September 2017, 01:14   #3
ceasar
Registered User

 
Join Date: Aug 2005
Location: NE Pennsylvania
Posts: 10,742
Quote:
Originally Posted by Dorian Gray View Post
I have a Nikon 8x32 SE that lives up to its reputation as a fine and practical instrument.

I’m wondering how the 10x42 compares, especially in regard to being able to compensate for my myopia (slightly over –6D) at infinity. The 8x32 can (barely) focus at infinity for me. Would the 10x42 differ in this regard? What about the 12x50?

If we know the eyepieces and focusing mechanism are identical (are they?), then I suppose there will be less focusing beyond infinity in the binoculars with longer focal length objectives.

There may be some sample variation too, of course.

Thanks for any info about this.
Dorian,

I have all three versions of the SE, which are 8x32, 10x42 and 12x50. I just took them out of their storage and examined them closely. The prism housings, which include the focusing mechanisms, on all three versions, have the same width and breadth.

Their lengths are all slightly different. I assume that this is (and I will stand corrected if my assumption is wrong) because these small differences in length are needed to fine tune the focal lengths of the objectives to F4 when the objective tubes are screwed into place on the binoculars.

I don't really know if these differences in their length could have any affect on their focusing past infinity.

I have no way of knowing if their oculars are the same but all three have diopter corrections that go from +4 to -4 and I can't see any differences between, or among, these eye pieces.

Hope this helps some,

Bob

Last edited by ceasar : Sunday 10th September 2017 at 01:27.
ceasar is offline  
Reply With Quote

BF Supporter 2010 Support BirdForum With A Donation

Old Friday 15th September 2017, 09:36   #4
Dorian Gray
Registered User

 
Join Date: Dec 2007
Location: Paris
Posts: 162
Thanks for your replies, jring and ceasar, despite my delay in coming back to this thread.

My question about comparative focus beyond infinity in the three SEs remains, but perhaps it’s not easy for others to answer.

Ceasar: you say the three have the same +4 to −4 dioptre range at the oculars. But is the gradation the same? That is, do the right oculars on the 8x32 and the 12x50 rotate through the same number of degrees to go from zero to −4 dioptres? (I’m guessing the thread pitch is the same for cost reasons, so perhaps this would indicate how much movement the respective binoculars take to focus.)

Which leads to one more question, if you have time: does the bridge on all three travel about the same distance in and out across the focusing range? This screw may also have the same pitch, so you may be able to simply compare the number of turns the focusing knobs make throughout the range.
Dorian Gray is offline  
Reply With Quote
Advertisement
Reply


Thread Tools
Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Good Nikon Porros? Red_Shoulder Nikon 85 Saturday 18th April 2015 08:54
Nikon 8x porros Moorcroft Nikon 30 Saturday 20th August 2011 01:32
Similarities to Alberta Silverwolf California 0 Friday 20th May 2011 00:22
Blackout fix for Nikon SE porros and others BinoBoy Nikon 5 Saturday 29th August 2009 13:41
Not enlightened...10x Porros: Nikon se, e2 or ?... Chris C Nikon 42 Friday 6th January 2006 21:50

{googleads}

Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.13066292 seconds with 15 queries
All times are GMT. The time now is 20:38.