Nikkor 180mm ED f/2.8 AF Test (andrea tasselli)

Celestial hemisphere: Northern · Constellation: Ursa Minor (UMi) · Contains: NGC 188 · Part of the constellation Ursa Minor (UMi) · The star 24UMi · The star Polaris (αUMi) · The star Yildun (δUMi)

Nikkor 180mm ED f/2.8 AF Test, andrea tasselli

Powered byPixInsight

Nikkor 180mm ED f/2.8 AF Test

Powered byPixInsight

Nikkor 180mm ED f/2.8 AF Test

This little gem of a lens has been my main go-to tele lens for close-up shots and performing admirably in doing so. It is also one of the few lens I could autofocus on the Moon and know that the stars would be pretty much in focus. For unkown reasons it appears I cannot bring it to open up fully with my Nikon body (but the EXIF info is still saying it is f/2.8 but the star bursts tells the lie) so I had to relay on the Fuji X-T1 to carry out the test. Which isn't too bad as the higher sampling gives a better translation to modern cameras' expected results. The results are indeed very good for a f/2.8 lens this long with some LCA that needs to be corrected in post-processing (unless you have a 72mm minus-violet filter to stick to the front), with the maximum circle nearly fully corrected and the main aberration still under control at the faraway corners, being mostly astigmatic coma on the left hand side and field curvature (with the attendant off-axis aberrations) on the right hand side. Curiously, the optical center of this lens is slightly to the left and below of the sensor center and as such the lower field is better than the upper field. Go figure...

AstroBin Platform open discussions community forum

Lens Tests

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Basic success
Started	...
Astrometry.net job	5500766
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Nikkor 180mm ED f/2.8 AF Test

Nikkor 180mm ED f/2.8 AF Test

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Nikkor 180mm ED f/2.8 AF Test

Nikkor 180mm ED f/2.8 AF Test

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information