Discussion Forum: Nikon 2148 10.5mm f2.8G ED-IF DX Lens

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Topic: Nikon 2148 10.5mm f2.8G ED-IF DX Lens

Message posted by videoedge on January-27-2005 at 12:16am

Australia
October-02-2002
30 Posts

Below is a quote from a website describing this lens.

"The AF DX Fisheye-Nikkor 10.5mm f/2.8G ED, an important addition to the DX Nikkor lens lineup, the first fisheye lens designed specifically for digital SLR photography is also the first to achieve a full-frame 180 degree picture angle".

Curious, will this lens coupled to say a D70 or D100, give the full framed images that Panoweaver desires to create high quality 3 shot VRs??

Cheers
Ian

Message posted by smooth on January-27-2005 at 1:55am

Australia
November-23-2002
5401 Posts

Hi Ian,

No! and the reason why is....

It says full frame not full circle.

Should be usable with Panorama 4.0? We will all know soon we hope!

Regards, Smooth

Message posted by videoedge on January-27-2005 at 4:56pm

Australia
October-02-2002
30 Posts

Thanks Smooth. Thats funny because all the articles regarding Cannon's 1DS and Kodak DSC 14n all refer to a "full frame" sensor. Nothing about full circle!! But as your THE man on these type of issues, I have no doubt you are correct and thank-you highly for your input.
Cheers
Ian

Message posted by 360texas on January-27-2005 at 8:44pm

United States
June-12-2002
2240 Posts

Smooth is correct. Full frame extends to all sides of the single frame. While a full circle.. is displayed as a circle image in the center of the image. With Panoweaver 3x a full circle image is acceptable. A full frame or 'drum' type image [truncated circle] will have to wait for a newer version of Panoweaver.

Dave

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Dave
Forum Moderator for
EasyPano - Panoweaver
Pano2VR

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Message posted by videoedge on January-28-2005 at 12:20am

Australia
October-02-2002
30 Posts

Cheers thanks Dave. Looking forward to V4 as are many it seems.

Cheers
Ian

Message posted by smooth on January-28-2005 at 9:42am

Australia
November-23-2002
5401 Posts

Yeah, two different things...

Full frame image and full frame sensor.

Canon 1Ds gives a full circular image from it's full frame sensor where as the 10D - 20D - D70 gives a full frame image from a smaller (not full frame) sensor. Using 10.5mm - 15mm Fisheye lenses and cropped circle with Sigma/Peleng 8mm fisheye.

Regards, Smooth

Message posted by 360texas on January-28-2005 at 10:08am

United States
June-12-2002
2240 Posts

Agreed. The 20d has a 2/3 size sensor 8.25mp. The crop factor is 1.6. So an 8mm Sigma lens really is a 12.3mm 35mm equivelent lens.

I did Did a thread search for "Crop Factor". I wrote a little bit about how that is calculated a few months ago.

http://www.easypano.com/forum/display_topic_threads.asp?ForumID=1&TopicID=717&SearchPagePosition=1&search=crop+factor&searchMode=allwords&searchIn=Thread&forum=1&searchSort=dateDESC&ReturnPage=Search

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Dave
Forum Moderator for
EasyPano - Panoweaver
Pano2VR

Visit 360texas.com

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