Hi Brian, how are you doing? I had purchased the 77mm kit of ND filters and a CPL filter of K&F, it works pretty well, but I can see vignetting when I stack 2 filters on from below 30mm down. I was thinking to exchaning it for an 82mm using a step-up, just dont know if this will help enough. its a bit expensive to do exchange, so checking with you if you had any issue like that. I really would like to use the filters with a wide lens (I have a 14-35 for instance), but dont want the hassle of the square system. What are your thoughts on that?
One of the problems that I tend to find with a magnetic filter system is that the magnets tend to be so strong when you try to remove a filter from a stack you end up pulling them all off.
That’s a very good point. I must say I didn’t have this issue when used them for the first time. I guess it’s hard to get the strength of the magnet just right. You don’t want them falling off either. Do you still used magnetic ones?
@@BrianNorthmorePhotography - I use a magnetic CPL because it is very quick to get on and off, but if I am using ND filters I use the Kase Armour System with Lee filters in. The Armour system is magnetic but it is much easier to get hold of. I tried a full Kase round magnetic system when they first came on the market, but I found the vignetting to be a big issue, and the problem I highlighted above so I sold them on eBay.
@valerievaleriem1769 Vignetting has been the only issue I have seen I think the answer maybe to buy the biggest size you can get and use step down rings. I need to experiment a bit more.
Good point. I bought Maven System and have the same problem. They are bringing out a Wave 2 Kickstarter project for more products and one is a new design of end cap that has a pull tab moulded in the centre. Maybe the magnet is slightly weaker too. You could carefully add PVC tape and trim around the contact rim of an end cap to weaken the pull off strength.
Good to see you’re trying out the magnetic filters and moving away from Lee. I switched about a year ago visiting a Kickstarter project with the Maven System. I’ve found it’s compatible with the Kase end caps and step up adapters. I’ll look forward to your findings on the optical performance of the KF system. Colourcast , CPL effectiveness etc. I’m keeping my Lee System for Timelapse photography on my other camera when you need to get exposure right in camera.
Wow! I just looked at Maven using the current exchange rate it would cost £650.00 to go up a filter size and solve the vignette problem. That’s a huge cost. No doubt quality is great but…. Is it 3 times better? I guess the kickstarter project would have saved you loads Working on the video now, for the quality of the optics
@@BrianNorthmorePhotography Yes Maven is expensive especially with the tax. It was the filter colour coding, strong magnets and zero colour cast that persuaded me to go for the Kickstarter deal. It cost £310 with delivery to buy the 82mm system with an additional 77/82 step up ring, an extra front cap and a back cap. I’m sure KF are excellent too as are Revolution Kase. Looking forward to your part 2 review. All the best, Chris
I've been using the variable ND filter for a couple of years , it for me works fine , I believe it stops from about 8 down to 3 stops , no issues with that . I never use the UV filter as yhe lenses are already coated with uv protection.. looking forward to seeing your verdict in these as I did think of going the circular magic route, thanks Brian.
You are right about UV coating on the lens. Bit I’m old school and we used to use the UV filter not just ward off UV light, but also to prevent impact from damage. With no filter and no lens hood the lens is very exposed, makes me a bit nervous. Variable NDs used to be ok for video but not if such a high quality for high Res photography, but times move on and if it works for you then this could be a solution to the vignetting I think they make a variable BD that goes up 3200 or 15 stops! That’s plenty. Next vid should be out Saturday or Sunday.
Thanks for posting this excellent video, Brian. I have a question about the circular polariser that I don't seem to be able to find the answer to. With a standard polariser, once you screw it on to the lens, part of the filter rotates to adjust the filter. Is this the same with the magnetic polarising filter or is the filter one piece that you adjust by actually turning it on the magnetic adaptor ring? Cheers!
Hi John, Thanks for your kind comment. In answewr to your question the filter is one piece and just turns inside the magnetic mount. It works reasonably well, the frames are a bit thin but that helps with the vignette issue, size and weight. It takes a little getting used to but after using these on a good few shoots now if have no issues at tall. The money off affiliate links still work in the description, if you are looking to buy.
I don’t understand this. Mine is certainly not plastic and details are sharp, no noticeable fall off in sharpness. I do think the polarisation could be stronger. This is the detail direct from the manufacturer. 4. After the glass is optically polished, a high-tech film is plated on the surface. "Moldproof", "Waterproof", "Anti-scratch" and "Anti-greasy". While having the characteristics of hard scratching, it will not have any impact on the image quality, even if it is contaminated with water droplets or oil, it can be easily removed; Maybe you refer to the film coating, but this is no different to many nano coatings used on opical glass by all manufacturers. Maybe you got unlucky with yours.
The 2nd part of this video is out now. th-cam.com/video/6I89L5ogZiw/w-d-xo.htmlsi=EeNRV6tHxL4FEJgj
Good video Brian, looks like it could be a good system but will wait for your final video. 🐕
I’m working on the video, should be out on Christmas Eve. Haven’t decided Yet I may release it early on the Saturday.
Hi Brian, how are you doing? I had purchased the 77mm kit of ND filters and a CPL filter of K&F, it works pretty well, but I can see vignetting when I stack 2 filters on from below 30mm down. I was thinking to exchaning it for an 82mm using a step-up, just dont know if this will help enough. its a bit expensive to do exchange, so checking with you if you had any issue like that. I really would like to use the filters with a wide lens (I have a 14-35 for instance), but dont want the hassle of the square system. What are your thoughts on that?
One of the problems that I tend to find with a magnetic filter system is that the magnets tend to be so strong when you try to remove a filter from a stack you end up pulling them all off.
That’s a very good point. I must say I didn’t have this issue when used them for the first time. I guess it’s hard to get the strength of the magnet just right. You don’t want them falling off either. Do you still used magnetic ones?
@@BrianNorthmorePhotography - I use a magnetic CPL because it is very quick to get on and off, but if I am using ND filters I use the Kase Armour System with Lee filters in. The Armour system is magnetic but it is much easier to get hold of. I tried a full Kase round magnetic system when they first came on the market, but I found the vignetting to be a big issue, and the problem I highlighted above so I sold them on eBay.
@valerievaleriem1769 Vignetting has been the only issue I have seen I think the answer maybe to buy the biggest size you can get and use step down rings. I need to experiment a bit more.
Good point. I bought Maven System and have the same problem. They are bringing out a Wave 2 Kickstarter project for more products and one is a new design of end cap that has a pull tab moulded in the centre. Maybe the magnet is slightly weaker too. You could carefully add PVC tape and trim around the contact rim of an end cap to weaken the pull off strength.
Good to see you’re trying out the magnetic filters and moving away from Lee. I switched about a year ago visiting a Kickstarter project with the Maven System. I’ve found it’s compatible with the Kase end caps and step up adapters. I’ll look forward to your findings on the optical performance of the KF system. Colourcast , CPL effectiveness etc. I’m keeping my Lee System for Timelapse photography on my other camera when you need to get exposure right in camera.
Wow! I just looked at Maven using the current exchange rate it would cost £650.00 to go up a filter size and solve the vignette problem. That’s a huge cost. No doubt quality is great but…. Is it 3 times better? I guess the kickstarter project would have saved you loads Working on the video now, for the quality of the optics
@@BrianNorthmorePhotography Yes Maven is expensive especially with the tax. It was the filter colour coding, strong magnets and zero colour cast that persuaded me to go for the Kickstarter deal. It cost £310 with delivery to buy the 82mm system with an additional 77/82 step up ring, an extra front cap and a back cap. I’m sure KF are excellent too as are Revolution Kase. Looking forward to your part 2 review. All the best, Chris
I've been using the variable ND filter for a couple of years , it for me works fine , I believe it stops from about 8 down to 3 stops , no issues with that . I never use the UV filter as yhe lenses are already coated with uv protection.. looking forward to seeing your verdict in these as I did think of going the circular magic route, thanks Brian.
You are right about UV coating on the lens. Bit I’m old school and we used to use the UV filter not just ward off UV light, but also to prevent impact from damage. With no filter and no lens hood the lens is very exposed, makes me a bit nervous.
Variable NDs used to be ok for video but not if such a high quality for high Res photography, but times move on and if it works for you then this could be a solution to the vignetting I think they make a variable BD that goes up 3200 or 15 stops! That’s plenty. Next vid should be out Saturday or Sunday.
Thanks for posting this excellent video, Brian. I have a question about the circular polariser that I don't seem to be able to find the answer to. With a standard polariser, once you screw it on to the lens, part of the filter rotates to adjust the filter. Is this the same with the magnetic polarising filter or is the filter one piece that you adjust by actually turning it on the magnetic adaptor ring? Cheers!
Hi John, Thanks for your kind comment. In answewr to your question the filter is one piece and just turns inside the magnetic mount. It works reasonably well, the frames are a bit thin but that helps with the vignette issue, size and weight. It takes a little getting used to but after using these on a good few shoots now if have no issues at tall. The money off affiliate links still work in the description, if you are looking to buy.
@@BrianNorthmorePhotography Great. Thanks, Brian.
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Cpl is very bad on Sony a7rv and 100-400 GM… blurry details! Plastic and not glass…….
I don’t understand this. Mine is certainly not plastic and details are sharp, no noticeable fall off in sharpness. I do think the polarisation could be stronger. This is the detail direct from the manufacturer.
4. After the glass is optically polished, a high-tech film is plated on the surface. "Moldproof", "Waterproof", "Anti-scratch" and "Anti-greasy". While having the characteristics of hard scratching, it will not have any impact on the image quality, even if it is contaminated with water droplets or oil, it can be easily removed;
Maybe you refer to the film coating, but this is no different to many nano coatings used on opical glass by all manufacturers. Maybe you got unlucky with yours.