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WATE filtered


jlm

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OK, I have more information now. Between the time that Leica sent me the "official" Schneider 486 filters and now, the specification for the filter coatings has changed somewhat. As such the filters currently shipping as "Leica" filters are slightly different from a B&W 486. I'm told that the difference will be most noticeable on 21 mm and wider lenses. I'll confirm this as part of my testing.

 

Provisionally, I suspect that the following may be true: 24 mm and longer lenses will likely work fine with either the 486 or the "Leica" filters. 21 mm and wider lenses should use the "Leica" filters specifically. I'll confirm this emprically with tests over the nest week or so.

 

The official statement given to me this morning simply reads:

 

""Leica Camera can only guarantee the correct function for the Leica Filters. Leica has no control about how, e.g., the coating of the B+W filters change in the series."

 

Cheers,

 

Sean

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Guest guy_mancuso

Thanks Sean and pretty much exactly what i have seen testing the WATE and such. Nice work

 

Sean you may want to post this info in a couple threads so folks have this info. Actually this thread is the most accurate thread on this subject and should be read by all.

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speaking of threads, I may have to start offering threaded rings with the adapter so one could use the Leica glass. more lathe work.

 

Yes, please do. I will stick to my order for the WATE adapter and B+W filter which I have sent you and will order another adapter for the Leica filter when - Lord knows - it becomes available. I have not received my free filters and have been told that one of them will be available end of this month at the earliest.

Teddy

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Guys, I hate to bring bad news, but in my brief test of the B+W 486 with firmware 1.102 and John's special WATE filter holder, the results at 16mm under incandescant light are disappointing at best. The shot below was taken under these conditions, and as you can tell, the firmware is correcting a bit for vignetting and a bit for cyan corners, but not nearly enough. The full frame was taken without any filters and would presumably have magenta blacks if there were synthetic materials here, but as you can see, in this case no filter is better than any other combination. No adjustments were made from the raw files. The samples are 100 pixel squares from the areas highlighted in the main photo.

 

By the way, this is in no way a negative review of John's masterful adapter, which is worth every penny.

 

Any and all comments and suggestions are welcome.

-Brad

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Guest guy_mancuso

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Actually Brad your bringing the same news i reported also the B+W are not working correctly but the leica 49mm is right to the corners on the 16mm setting. you may have missed this somewhere but i have been recommending the leica 49mm is the one to get.

 

But since you have the B+W you can cheat set the menu option at 16mm and shoot at 18mm and set at 18mm and shoot at 21mm. At least you will have two usable focal lengths until these damn leica filters hit the streets.

 

i am trying to get Popflash to sell all there 49mm to LUF members with the WATE. Let's see what happens with this. If i happen to see these i am buying everyone i can get so WATE owners can get them at whatever price i pay. The leica filter is the one you want for sure on this lens.

 

 

trying to figure what thread i posted a couple shots from the Leica filter

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Guest guy_mancuso

Here Brad even at the 21mm setting it is obvious the B+W is not getting it done

 

One B+W

Second leica filter

 

this time i WB them and the B+W has a green cast through all the image. the leica is as it should be in color

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Has anybody tried using a B+W 489 filter with the WATE? I know there was some earlier discussion (it has a filter factor of 1.2 and it makes a slightly greenish cast) but it may also eliminate the cyan corners completely. It's fairly easy to remove a greenish cast in Photoshop as long as it is consistent across the entire image.

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Has anybody tried using a B+W 489 filter with the WATE? I know there was some earlier discussion (it has a filter factor of 1.2 and it makes a slightly greenish cast) but it may also eliminate the cyan corners completely. It's fairly easy to remove a greenish cast in Photoshop as long as it is consistent across the entire image.

 

 

Okay, I answered my own question. This is the WATE shot at 16mm with a B+W 489 held in front of the lens. The first row is "as shot" and the second has EV+1.2 and clicked white balance. There are no cyan corners, as expected.

 

Until I see a better solution (i.e. Leica 49mm UV/IR) I will use the 489 and make the simple correction in Photoshop.

-Brad

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Here is a further test of the WATE at 16mm with a B+W 489 IR filter, all with firmware 1.102. All photos were taken RAW and imported using ACR with no adjustments.

 

#1: lens detection off

#2: lens detection on

#3: lens detection on + UV/IR

#4: lens detection on + UV/IR + click to white balance in ACR

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and two more, this time with the 486 filter, both with lens detection on + UV/IR

 

#1: as shot

#2: click to WB in ACR

 

compare these (especially #2) "best possible with a 486" to the 489 shots above. I have copied the last 489 here as photo #3

 

-brad

 

P.S. sorry about my finger in the lower right - i had to handhold the 486 in front of the bare lens.

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  • 2 weeks later...

John, What's the retaining ring used for? Have you come up with a new adapter that can accept a screw in filter? The original one I purchased needed to have the glass removed.

 

Herb

 

Does anyone know where I can get Leica's 49mm IR cut filter? Popflash & Adorama don't have any.

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Guest guy_mancuso

You need to remove the Leica 49mm filter from the filter mount and place the glass inside the adapter than need a retaining ring to hold it in place. The Leica 49mm filter is a split ring type which makes it very easy to remove from the mount but that split ring will not work inside Johns adapter , you will need a retaining ring. besides that split ring is really not that secure anyway so a redesign to accept it is stronger ill adviced . The screw in type is a much more secure setup and holds the glass firmly in place. This is a excellent adapter and anyone with a WATE and M8 a almost must have setup. Love this adapter, could not ask for a better setup. Leica 49mm filters should be hitting the streets fairly soon, just have to keep a eye out for them . BTW i STRONGLY recommend only the Leica filter here. The B+W 486 does not work efffectively enough to completely eliminate the cyan cast at 16mm and 18mm only the Leica filter works effectively

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The Leica 49mm filter is a split ring type which makes it very easy to remove from the mount ...

 

 

I would appreciate it if someone would explain the best was to remove the split ring from a Leica filter. I apologise if this has already been discussed.

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Although I've not seen any Leica filters the simplest way to remove a split ring is as follows. Find where there is a gap in the ring and insert a very small jeweller's screwdriver into the gap up against one end of the ring. Now try to lift the end of the ring at the same time as pulling it inwards. The ring should pop out of it's retaining slot. You do have to be very careful not to slip with the screwdriver otherwise you risk scratching or chipping the filter.

 

Bob.

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  • 4 months later...

Since this thread has been newly referenced from another, let me describe the way I use to remove the filter glass. As Bob says, using a sharp object to remove the filter retaining ring runs the risk of scratching the glass or chipping the edge. I did.

 

1. From the back of the filter ring, look for the gap in the retaining ring.

 

2. Using a pair of wire cutters, make a cut from the back of the thread at right angles to the filter glass down as far as the glass, but not touching it, into the gap.

 

3. Take a pair of thin-nosed pliers and grip the thread on one side of the cut, then turn the pliers to "wind" the threaded portion of the ring away from the cut and out of the ring about 1cm or half an inch. Repeat with the thread on the other side of the cut. The aluminium is very thin at this point and will tear.

 

You can then easily remove the retaining ring with a finger and the glass pops out.

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While I love the idea of adding my own filters, I am wondering that for those of us who may not have the tools or the mechanical aptitude, it may make sense to have a version of JLM's filter mount with the filter already mounted for a fee.

 

Am I being too lazy or inconsiderate?

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