Author Topic: Irix 15/2.4 (Read 26788 times)

Bjørn Rørslett · « **Reply #30 on:** October 02, 2016, 21:16:28 »

Quote from: jhinkey on October 02, 2016, 19:57:02

Wow, I was about to comment about why Nikon can't make a super-wide prime like this, but they would never let a lens design get out the door with that kind of flare problem. ...

The venerable Nikkor QDC 15 mm f/5.6 had a similar flare, although "cleaner" as it was just a narrow blue circle not red + green.

Probably reflections off edges of an element inside.

stenrasmussen · « **Reply #31 on:** October 03, 2016, 00:39:52 »

For night time photography I actually like the Irix better than the Samyang.
~~Two~~ Three shots from my test tour this evening:

jhinkey · « **Reply #32 on:** October 03, 2016, 02:29:08 »

Quote from: Bjørn Rørslett on October 02, 2016, 21:16:28

The venerable Nikkor QDC 15 mm f/5.6 had a similar flare, although "cleaner" as it was just a narrow blue circle not red + green.

Probably reflections off edges of an element inside.

Yes, but this new lens was most-likely computer designed while the 15/5.6 is how many years (decades) old and was likely hand-designed in the late 60's early 70's?

stenrasmussen · « **Reply #33 on:** October 03, 2016, 07:49:24 »

Here are two shots with the D500. As can be seen in the first image the lens is a little soft at the right side.
Will try my dealer's second copy.

stenrasmussen · « **Reply #34 on:** October 03, 2016, 22:13:45 »

New copy is better.
Night shot at f/8, backed by the Df

aerobat · « **Reply #35 on:** October 03, 2016, 22:18:08 »

Thanks for sharing your first impressions Sten.
I quite like the results. It certainly depends on usage.
What would your main usage be?

stenrasmussen · « **Reply #36 on:** October 05, 2016, 10:40:00 »

Quote from: aerobat on October 03, 2016, 22:18:08

Thanks for sharing your first impressions Sten.
I quite like the results. It certainly depends on usage.
What would your main usage be?

Night time shots is what my main intentions are. But as I now have a good copy I might expand on this. Here's a shot from this morning (f/4).

stenrasmussen · « **Reply #37 on:** October 05, 2016, 11:05:08 »

A shot with the Irix on the D500.

Jan Anne · « **Reply #38 on:** October 05, 2016, 11:31:55 »

Sten, are there any improvements in flare performance with the second copy?

stenrasmussen · « **Reply #39 on:** October 05, 2016, 15:01:23 »

Quote from: Jan Anne on October 05, 2016, 11:31:55

Sten, are there any improvements in flare performance with the second copy?

Not that I can see.

Harald · « **Reply #40 on:** October 05, 2016, 15:26:48 »

Hi,

and your thoughts compared to the Samyang?

Harald

stenrasmussen · « **Reply #41 on:** October 08, 2016, 10:08:51 »

Quote from: Harald on October 05, 2016, 15:26:48

Hi,

and your thoughts compared to the Samyang?

Harald

Except for the flare (which isn't a problem in most situations) I like it better than the Samyang. The lens is really at home on my D500. So I have a very good 22mm there.

Harald · « **Reply #42 on:** October 08, 2016, 15:34:57 »

Hi Sten,

so i will have a try the next time.

Thanks for sharing your experience!

Harald

stenrasmussen · « **Reply #43 on:** October 12, 2016, 10:57:30 »

A few more with this lens.

Erik Lund · « **Reply #44 on:** October 12, 2016, 11:15:10 »

Very nice samples Sten! Looks really good

This is of cause also very dependent on PP - But It appears you also can see the high contrast and very saturated images from the lens as well as what we found at Photokina.

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