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Klaus · 07-30-2020, 12:09 PM - **1 Like**

Hi

I just received the Irix 150 macro. Happy with it, up to now.

I am surprised to see that the lens does not project any shadow using the onboard flash, at any distance. This review says the contrary:
Irix 150mm F2.8 Macro Review - Introduction | PentaxForums.com Reviews

Cheers - Klaus

thibs · 07-30-2020, 01:01 PM

Originally posted by Klaus

Hi

I just received the Irix 150 macro. Happy with it, up to now.

I am surprised to see that the lens does not project any shadow using the onboard flash, at any distance. This review says the contrary:
Irix 150mm F2.8 Macro Review - Introduction | PentaxForums.com Reviews

Cheers - Klaus

When you got some time, could you provide some samples including some with onboard flash ?
Thanks !

Klaus · 07-30-2020, 01:40 PM

Originally posted by thibs

When you got some time, could you provide some samples including some with onboard flash ?
Thanks !

with flash I got only ugly test shots that I won't show anybody

Here 2 test photos in our garden. The first it the tip of the ear of our cat.

Cheers - Klaus

https://www.pentaxforums.com/forums/members/24053-klaus/albums/13708-test/picture131667.jpg

https://www.pentaxforums.com/forums/members/24053-klaus/albums/13708-test/picture131668.jpg

thibs · 07-30-2020, 02:20 PM

Thanks !

Klaus · 07-30-2020, 03:33 PM - **1 Like**

Originally posted by thibs

Thanks !

Attached proof of lack of problems with onboard flash with K3, at 3 meters and at closest distance.

Cheers - Klaus

Klaus · 07-31-2020, 12:32 AM

I suppose they had the hood on when the test for the review was made.

Cheers - Klaus

Unregistered User · 07-31-2020, 10:22 AM

I suspect that comment about shadows was about the Irix 11 and 15mm lenses. I know the 11mm does do that on the KP, but the K-1 requires an external flash, and the extra height of the flash mostly eliminates the problem. That pulls the edge of the shadow back towards the feet, but then, my feet sometimes show up in the pictures, as well.

bdery · 08-04-2020, 08:52 AM - **1 Like**

In the review, I mention that with the K-3 specifically, it creates a shadow when using the flash. That's indeed with the hood in place. As mentioned above and in the review, with the K-1 there is no onboard flash.

Klaus · 08-07-2020, 07:23 AM

Originally posted by bdery

In the review, I mention that with the K-3 specifically, it creates a shadow when using the flash. That's indeed with the hood in place. As mentioned above and in the review, with the K-1 there is no onboard flash.

Yes, at close distances the hood blocks the light from the onboard flash. But taking it off removes this problem completely, with he K3. At medium distances there is no problem either even using the hood.

Cheers - Klaus

Klaus · 08-13-2020, 07:30 AM

Hi, everybody

Problem of the Irix 150 with the Pentax 1.7 autofocusing adapter solved :-)

I have cut off the outer part of the diaphragm-lever in the adapter. There are no recent cameras that use it. For this reason, it is not a big loss.

I just bended the end a bit inside, cut it off with a regular wire-cutter, and bended it a bit back.

Here the result:

07-30-2020, 12:09 PM - 1 Like	#1
Klaus Senior Member Join Date: Jan 2010 Location: Murcia, Spain Photos: Gallery Posts: 100	Irix 150mm F2.8 Macro Hi I just received the Irix 150 macro. Happy with it, up to now. I am surprised to see that the lens does not project any shadow using the onboard flash, at any distance. This review says the contrary: Irix 150mm F2.8 Macro Review - Introduction \| PentaxForums.com Reviews Cheers - Klaus

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07-30-2020, 01:01 PM	#2
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Originally posted by Klaus Hi I just received the Irix 150 macro. Happy with it, up to now. I am surprised to see that the lens does not project any shadow using the onboard flash, at any distance. This review says the contrary: Irix 150mm F2.8 Macro Review - Introduction \| PentaxForums.com Reviews Cheers - Klaus When you got some time, could you provide some samples including some with onboard flash ? Thanks !

07-30-2020, 01:40 PM	#3
Klaus Senior Member Join Date: Jan 2010 Location: Murcia, Spain Photos: Gallery Posts: 100 Original Poster	Originally posted by thibs When you got some time, could you provide some samples including some with onboard flash ? Thanks ! with flash I got only ugly test shots that I won't show anybody Here 2 test photos in our garden. The first it the tip of the ear of our cat. Cheers - Klaus https://www.pentaxforums.com/forums/members/24053-klaus/albums/13708-test/picture131667.jpg https://www.pentaxforums.com/forums/members/24053-klaus/albums/13708-test/picture131668.jpg

07-30-2020, 02:20 PM	#4
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Thanks !

07-31-2020, 12:32 AM	#6
Klaus Senior Member Join Date: Jan 2010 Location: Murcia, Spain Photos: Gallery Posts: 100 Original Poster	I suppose they had the hood on when the test for the review was made. Cheers - Klaus

07-31-2020, 10:22 AM	#7
Unregistered User Guest	I suspect that comment about shadows was about the Irix 11 and 15mm lenses. I know the 11mm does do that on the KP, but the K-1 requires an external flash, and the extra height of the flash mostly eliminates the problem. That pulls the edge of the shadow back towards the feet, but then, my feet sometimes show up in the pictures, as well.

08-04-2020, 08:52 AM - 1 Like	#8
bdery Pentaxian Join Date: Mar 2008 Location: Quebec city, Canada Photos: Gallery Posts: 9,363	In the review, I mention that with the K-3 specifically, it creates a shadow when using the flash. That's indeed with the hood in place. As mentioned above and in the review, with the K-1 there is no onboard flash.

08-07-2020, 07:23 AM	#9
Klaus Senior Member Join Date: Jan 2010 Location: Murcia, Spain Photos: Gallery Posts: 100 Original Poster	Originally posted by bdery In the review, I mention that with the K-3 specifically, it creates a shadow when using the flash. That's indeed with the hood in place. As mentioned above and in the review, with the K-1 there is no onboard flash. Yes, at close distances the hood blocks the light from the onboard flash. But taking it off removes this problem completely, with he K3. At medium distances there is no problem either even using the hood. Cheers - Klaus