Irix 15mm f/2,4 for full frame K-mount

virusn3t · 09-07-2016, 08:40 AM - **1 Like**

There any page with pictures out of the ones from the manufacturer or a page with first impressions?

beholder3 · 09-10-2016, 12:28 AM

Quote:

We are proud to inform that our first product has just hit the market. Huge thanks to all of you who have been patiently waiting for this day.
Irix 15/2.4 is ready for sale! First deliveries of our lenses have been shipped to the distributors and retailers. Soon the customers will be able to enjoy the quality of Irix.
Recommended retail prices are: 695 EUR for Irix Blackstone, 475 EUR for Irix Firefly. Both versions are available for Canon EF and Nikon F cameras. By the end of September there will be also a Pentax K mount available.

Irix Lens - Timeline | Facebook

Here are some corner crops from a Canon user:
DSLR-Forum - Einzelnen Beitrag anzeigen - Neues Objektiv Irix 15/2.4

Coma is no better than Samyang 14mm F2.8.

FantasticMrFox · 09-10-2016, 09:55 AM

Originally posted by beholder3

Coma is no better than Samyang 14mm F2.8.

Which you kind of make sound like a bad thing, but actually the Samyang is known to perform extremely well on that front and is thus a staple for night sky photography, even for those who already have e.g. a Nikon 14-24 f/2.8.

The Samyang also has amazing resolution, what it's lacking in seem to be quality control (loads of decentred ones out there) and work against bright light/flare control.

D1N0 · 09-10-2016, 10:10 AM

There is a Milvus 15mm F2.8 now. Get Zeiss to make one for Pentax

awscreo · 09-10-2016, 11:42 AM

Originally posted by D1N0

There is a Milvus 15mm F2.8 now. Get Zeiss to make one for Pentax

this is cheaper, and faster

also has some neat features in the more expensive version. Hope we'll see few reviews to see how it stacks up optically

krsto · 09-11-2016, 11:03 AM

Originally posted by virusn3t

There any page with pictures out of the ones from the manufacturer or a page with first impressions?

This does not look like "a page with first impressions": Irix 15 mm f/2.4 - sample images - LensTip.com

Interspieder · 09-11-2016, 12:14 PM

In my opinion none of these pictures are sharp, or did I get something wrong?

Na Horuk · 09-11-2016, 01:18 PM

Originally posted by Interspieder

In my opinion none of these pictures are sharp, or did I get something wrong?

After seeing the Lenstip photos, I would prefer to get a Samyang instead. Or maybe even Zenitar 16mm!
This is why I am always reserved with hyped up lenses until I can see sample photos by reviewers and users. I am not dismissing the lens yet, but those photos definitely did not convince me.
That said, the lenstip sample photos used the Canon's lowest jpeg sharpening. I would like to see a couple raw files before I completely make up my mind

**Rondec** · 09-11-2016, 02:21 PM

I think the photos look OK. The big thing is that distortion seems pretty well controlled, which the Samyang can get pretty strange with architecture sometimes. If you are shooting landscapes, then probably any of these would be fine. Sharpness could be bumped up a little on several of those as per the photographer's taste, but they chose fairly neutral settings. Some are softened a bit by being shot at iso 800 as well.

Paul the Sunman · 09-11-2016, 03:50 PM - **1 Like**

I will suspend judgement until I see shots from it on the K-1. Pixel shift in particular should test its resolving power. Otherwise, the Irix looks promising.

wkraus · 09-12-2016, 01:43 AM

With all respect for Lenstip, some of these samples appear quite a bit front-focused to me.

repaap · 09-12-2016, 01:58 AM

I'd say that yes those pictures looked soft, and just as stated before me, it was low JPEG sharpening. Some of stuff that looked interesting, mostly corner performance and distortion, or lack of it when comparing this to SY 14. I just did some shooting with my SY14 and it is quite good on lot of things, but taking filters and corner sharpness and distortion is not good at all. For the money samyang is great!(on FF it suffers more than APS-C)

beholder3 · 09-12-2016, 02:05 AM

Even at F8 the lower right corner here http://pliki.optyczne.pl/iri25/iri25_fot14.JPG ist not really great.

Generally the optical performance seems very balanced to the Samyang. The price is +60% (for the cheaper version), so it all is amtter of personal preferences again.

repaap · 09-12-2016, 02:17 AM

Originally posted by beholder3

Even at F8 the lower right corner here http://pliki.optyczne.pl/iri25/iri25_fot14.JPG ist not really great.

Generally the optical performance seems very balanced to the Samyang. The price is +60% (for the cheaper version), so it all is amtter of personal preferences again.

I do agree, it is not so good, but top left corner does not look so bad, couple of other shots might have looked better with different focus too. But as i said corners still looks better that SY14 in general, besides, SY 14 corners are poor, even at F 11..on FF that is.

**clackers** · 09-12-2016, 03:07 AM

Originally posted by wkraus

With all respect for Lenstip, some of these samples appear quite a bit front-focused to me.

Isn't this a manual focus lens?

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09-07-2016, 08:40 AM - 1 Like	#256
virusn3t Veteran Member Join Date: Jul 2014 Posts: 676	There any page with pictures out of the ones from the manufacturer or a page with first impressions?

09-10-2016, 12:28 AM	#257
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	Quote: We are proud to inform that our first product has just hit the market. Huge thanks to all of you who have been patiently waiting for this day. Irix 15/2.4 is ready for sale! First deliveries of our lenses have been shipped to the distributors and retailers. Soon the customers will be able to enjoy the quality of Irix. Recommended retail prices are: 695 EUR for Irix Blackstone, 475 EUR for Irix Firefly. Both versions are available for Canon EF and Nikon F cameras. By the end of September there will be also a Pentax K mount available. Irix Lens - Timeline \| Facebook Here are some corner crops from a Canon user: DSLR-Forum - Einzelnen Beitrag anzeigen - Neues Objektiv Irix 15/2.4 Coma is no better than Samyang 14mm F2.8.

09-10-2016, 09:55 AM	#258
FantasticMrFox Veteran Member Join Date: Oct 2014 Location: Munich Posts: 2,339	Originally posted by beholder3 Coma is no better than Samyang 14mm F2.8. Which you kind of make sound like a bad thing, but actually the Samyang is known to perform extremely well on that front and is thus a staple for night sky photography, even for those who already have e.g. a Nikon 14-24 f/2.8. The Samyang also has amazing resolution, what it's lacking in seem to be quality control (loads of decentred ones out there) and work against bright light/flare control.

09-10-2016, 10:10 AM	#259
D1N0 Pentaxian Join Date: May 2012 Location: --- Photos: Gallery Posts: 6,802	There is a Milvus 15mm F2.8 now. Get Zeiss to make one for Pentax

09-10-2016, 11:42 AM	#260
awscreo Veteran Member Join Date: May 2016 Photos: Gallery \| Albums Posts: 2,722	Originally posted by D1N0 There is a Milvus 15mm F2.8 now. Get Zeiss to make one for Pentax this is cheaper, and faster also has some neat features in the more expensive version. Hope we'll see few reviews to see how it stacks up optically

09-11-2016, 11:03 AM	#261
krsto New Member Join Date: Mar 2014 Posts: 15	Originally posted by virusn3t There any page with pictures out of the ones from the manufacturer or a page with first impressions? This does not look like "a page with first impressions": Irix 15 mm f/2.4 - sample images - LensTip.com

09-11-2016, 12:14 PM	#262
Interspieder Forum Member Join Date: Feb 2016 Posts: 76	In my opinion none of these pictures are sharp, or did I get something wrong?

09-11-2016, 01:18 PM	#263
Na Horuk Veteran Member Join Date: Feb 2012 Location: Slovenia, probably Photos: Gallery \| Albums Posts: 11,186	Originally posted by Interspieder In my opinion none of these pictures are sharp, or did I get something wrong? After seeing the Lenstip photos, I would prefer to get a Samyang instead. Or maybe even Zenitar 16mm! This is why I am always reserved with hyped up lenses until I can see sample photos by reviewers and users. I am not dismissing the lens yet, but those photos definitely did not convince me. That said, the lenstip sample photos used the Canon's lowest jpeg sharpening. I would like to see a couple raw files before I completely make up my mind

09-11-2016, 02:21 PM	#264
Rondec Loyal Site Supporter Join Date: Mar 2009 Location: Gladys, Virginia Photos: Gallery Posts: 27,650	I think the photos look OK. The big thing is that distortion seems pretty well controlled, which the Samyang can get pretty strange with architecture sometimes. If you are shooting landscapes, then probably any of these would be fine. Sharpness could be bumped up a little on several of those as per the photographer's taste, but they chose fairly neutral settings. Some are softened a bit by being shot at iso 800 as well.

09-11-2016, 03:50 PM - 1 Like	#265
Paul the Sunman Pentaxian Join Date: Aug 2011 Location: Melbourne Photos: Gallery Posts: 4,842	I will suspend judgement until I see shots from it on the K-1. Pixel shift in particular should test its resolving power. Otherwise, the Irix looks promising.

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09-12-2016, 01:43 AM	#266
wkraus Pentaxian Join Date: Jan 2013 Location: Near Vienna, Austria Photos: Gallery Posts: 2,057	With all respect for Lenstip, some of these samples appear quite a bit front-focused to me.

09-12-2016, 01:58 AM	#267
repaap Pentaxian Join Date: Oct 2010 Photos: Gallery \| Albums Posts: 6,242	I'd say that yes those pictures looked soft, and just as stated before me, it was low JPEG sharpening. Some of stuff that looked interesting, mostly corner performance and distortion, or lack of it when comparing this to SY 14. I just did some shooting with my SY14 and it is quite good on lot of things, but taking filters and corner sharpness and distortion is not good at all. For the money samyang is great!(on FF it suffers more than APS-C)

09-12-2016, 02:05 AM	#268
beholder3 Pentaxian Join Date: Dec 2011 Posts: 3,112	Even at F8 the lower right corner here http://pliki.optyczne.pl/iri25/iri25_fot14.JPG ist not really great. Generally the optical performance seems very balanced to the Samyang. The price is +60% (for the cheaper version), so it all is amtter of personal preferences again.

09-12-2016, 02:17 AM	#269
repaap Pentaxian Join Date: Oct 2010 Photos: Gallery \| Albums Posts: 6,242	Originally posted by beholder3 Even at F8 the lower right corner here http://pliki.optyczne.pl/iri25/iri25_fot14.JPG ist not really great. Generally the optical performance seems very balanced to the Samyang. The price is +60% (for the cheaper version), so it all is amtter of personal preferences again. I do agree, it is not so good, but top left corner does not look so bad, couple of other shots might have looked better with different focus too. But as i said corners still looks better that SY14 in general, besides, SY 14 corners are poor, even at F 11..on FF that is.

09-12-2016, 03:07 AM	#270
clackers Otis Memorial Pentaxian Join Date: Jul 2013 Location: Melbourne Photos: Albums Posts: 16,397	Originally posted by wkraus With all respect for Lenstip, some of these samples appear quite a bit front-focused to me. Isn't this a manual focus lens?