15mm DA - Very odd

amcinroy · 09-23-2008, 04:02 AM

It appears that the 15mm DA has a permanent hood which is retractable into the body. It sits between the barrel and the focus ring.

The problem is, in its retracted state as seen at Photokina, it still appears to protrude out from the front element, thereby blocking any filter system holders.

If this lens is to appeal to landscape photographers (as it surely must), this could be a big problem.

I just hope that it can be removed. However, Pentax claim it is an "integrated hood" so that doesn't seem likely.

Bad, very bad.

bentax · 09-23-2008, 04:26 AM

This is something that has me worried also. Im currently following your thread on the other forum to see if theres any positive insight on this.

zntgrg · 09-23-2008, 04:28 AM

Many extrem wide angles have such elements, to protect the main lens.

roentarre · 09-23-2008, 04:48 AM

The hood shall be able to be removed easily just like Fa 43 ltd hood

amcinroy · 09-23-2008, 04:53 AM

Roen,

If you look at the Photokina images, it appears quite different.

It sits between the barrel and the focus ring and looks permanently attached.

Pentax state that it is "4. Integrated"

Here's a photo which shows it clearly (on the left of course)
http://www.dpreview.com/articles/photokina2008/Pentax/DSC_0734.jpg

NorthPentax · 09-23-2008, 04:57 AM

I thought the DA 70mm had a permanent hood. I discovered that I could remove it a few weeks ago. I hope the 15mm have something like the 70mm.

Do anyone know the size of this lens?

Edit: amcinroy, thanks for the picture. It looks wierd. Those two "flaps" makes no sense. They don't protect anything since the glass is below the filter screw mount.

Edit2: The 55mm is 66mm in length, maybe the 15mm is about 45-50mm in length? or around 40mm?

eurostar · 09-23-2008, 05:22 AM

Those two flaps is just the retracted hood. Check the official announcements to see a picture with the hood in full open position.

NorthPentax · 09-23-2008, 05:43 AM

Found it.

Thanks eurostar.

Don't think the hood would block any filter. The hood would be outside the mounted filter.

amcinroy · 09-23-2008, 05:51 AM

It will if you are using a square filter system (Lee, Cokin etc) where the adapter ring has to sit flush with the barrel.

NorthPentax · 09-23-2008, 06:01 AM

I use Photoshop CS3, don't need filters like that.

Understand what you're saying... it could be a problem.

mk07138 · 09-23-2008, 06:05 AM

Even CS3 can't really match the usefulness of a split neutral density filter mounted when you take the picture. It can almost, but its not the same. Thats pretty much all I use my cokin system for is different grade neutral density filters and split neutral density filters. CS3 won't be able to make a waterfall look like satin because I was able to use a slow shutterspeed even in strong light.

amcinroy · 09-23-2008, 06:10 AM

Yes, lets not go down the line of "I don't need filters so it doesn't matter".

Most landscapers who know what they are doing will be using square holders with split NDs, particularly coastal photographers who photograph moving water using single exposures. This hood design will be certainly be a concern to them.

Jasvox · 09-23-2008, 06:12 AM

The retractable hood does not affect the use or application of a screw in filter in anyway at all. If you look closely, you may notice that the lip with the threads is seperate than the edges of the hood. The filter remains stationary on its threads and the hood retracts or protrudes independantly.

Jason

NorthPentax · 09-23-2008, 06:14 AM

I know. But most filters are round, not square. So they will fit.

I only hope this one fits the 49mm filter size I have on all my lenses.

amcinroy · 09-23-2008, 06:21 AM

Sigh,

You guys are not getting it.

Round filters are fine. But adapters rings for filter systems cannot sit flush with the end of this lens.

Round filters are useless as split ND grads.

09-23-2008, 04:02 AM	#1
amcinroy Junior Member Join Date: Feb 2007 Posts: 38	15mm DA - Very odd It appears that the 15mm DA has a permanent hood which is retractable into the body. It sits between the barrel and the focus ring. The problem is, in its retracted state as seen at Photokina, it still appears to protrude out from the front element, thereby blocking any filter system holders. If this lens is to appeal to landscape photographers (as it surely must), this could be a big problem. I just hope that it can be removed. However, Pentax claim it is an "integrated hood" so that doesn't seem likely. Bad, very bad.

09-23-2008, 04:57 AM	#6
NorthPentax Inactive Account Join Date: Aug 2008 Location: No(r)way Photos: Gallery Posts: 179	I thought the DA 70mm had a permanent hood. I discovered that I could remove it a few weeks ago. I hope the 15mm have something like the 70mm. Do anyone know the size of this lens? Edit: amcinroy, thanks for the picture. It looks wierd. Those two "flaps" makes no sense. They don't protect anything since the glass is below the filter screw mount. Edit2: The 55mm is 66mm in length, maybe the 15mm is about 45-50mm in length? or around 40mm? Last edited by NorthPentax; 09-23-2008 at 05:09 AM.

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09-23-2008, 04:26 AM	#2
bentax Senior Member Join Date: Jan 2008 Location: West Australia Posts: 190	This is something that has me worried also. Im currently following your thread on the other forum to see if theres any positive insight on this.

09-23-2008, 04:28 AM	#3
zntgrg Senior Member Join Date: Oct 2007 Location: Verona, Italy Posts: 202	Many extrem wide angles have such elements, to protect the main lens.

09-23-2008, 04:48 AM	#4
roentarre Veteran Member Join Date: Oct 2006 Location: Melbourne, Australia Posts: 11,783	The hood shall be able to be removed easily just like Fa 43 ltd hood

09-23-2008, 04:53 AM	#5
amcinroy Junior Member Join Date: Feb 2007 Posts: 38 Original Poster	Roen, If you look at the Photokina images, it appears quite different. It sits between the barrel and the focus ring and looks permanently attached. Pentax state that it is "4. Integrated" Here's a photo which shows it clearly (on the left of course) http://www.dpreview.com/articles/photokina2008/Pentax/DSC_0734.jpg

09-23-2008, 05:22 AM	#7
eurostar Veteran Member Join Date: Dec 2006 Location: Albareto, Italy Photos: Gallery Posts: 819	Those two flaps is just the retracted hood. Check the official announcements to see a picture with the hood in full open position.

09-23-2008, 05:43 AM	#8
NorthPentax Inactive Account Join Date: Aug 2008 Location: No(r)way Photos: Gallery Posts: 179	Found it. Thanks eurostar. Don't think the hood would block any filter. The hood would be outside the mounted filter.

09-23-2008, 05:51 AM	#9
amcinroy Junior Member Join Date: Feb 2007 Posts: 38 Original Poster	It will if you are using a square filter system (Lee, Cokin etc) where the adapter ring has to sit flush with the barrel.

09-23-2008, 06:01 AM	#10
NorthPentax Inactive Account Join Date: Aug 2008 Location: No(r)way Photos: Gallery Posts: 179	I use Photoshop CS3, don't need filters like that. Understand what you're saying... it could be a problem.

09-23-2008, 06:05 AM	#11
mk07138 Senior Member Join Date: Mar 2008 Location: Frostburg Maryland Photos: Gallery \| Albums Posts: 151	Even CS3 can't really match the usefulness of a split neutral density filter mounted when you take the picture. It can almost, but its not the same. Thats pretty much all I use my cokin system for is different grade neutral density filters and split neutral density filters. CS3 won't be able to make a waterfall look like satin because I was able to use a slow shutterspeed even in strong light.

09-23-2008, 06:10 AM	#12
amcinroy Junior Member Join Date: Feb 2007 Posts: 38 Original Poster	Yes, lets not go down the line of "I don't need filters so it doesn't matter". Most landscapers who know what they are doing will be using square holders with split NDs, particularly coastal photographers who photograph moving water using single exposures. This hood design will be certainly be a concern to them.

09-23-2008, 06:12 AM	#13
Jasvox Veteran Member Join Date: Oct 2007 Location: Melbourne, Australia Posts: 3,107	The retractable hood does not affect the use or application of a screw in filter in anyway at all. If you look closely, you may notice that the lip with the threads is seperate than the edges of the hood. The filter remains stationary on its threads and the hood retracts or protrudes independantly. Jason

09-23-2008, 06:14 AM	#14
NorthPentax Inactive Account Join Date: Aug 2008 Location: No(r)way Photos: Gallery Posts: 179	I know. But most filters are round, not square. So they will fit. I only hope this one fits the 49mm filter size I have on all my lenses.

09-23-2008, 06:21 AM	#15
amcinroy Junior Member Join Date: Feb 2007 Posts: 38 Original Poster	Sigh, You guys are not getting it. Round filters are fine. But adapters rings for filter systems cannot sit flush with the end of this lens. Round filters are useless as split ND grads.