dsmeltz Loc: Philadelphia

I don't know why or if it can be done effectively.


THAT IS WHY I ASKED.

.

dsmeltz Loc: Philadelphia

Thanks for an on point reply. I have an 80D and I do not know that paying half the cost of the camera to remove the filter is cost efficient. But thank you again for your response.

At least now I know it can be done and might be useful.

CO

I think cameras that have an anti-aliasing filter also have an algorithm that sharpens the image after being blurred by the AA filter. I wonder how that works out after the AA filter has been removed.

mas24 Loc: Southern CA

That's a good question. I do know that some Sony Alpha cameras have aa filters and algorithm that sharpen the image. I think the original Sony a99 would be one of them. I personally would not remove an aa filter from an older model camera. Buy another camera without one. IMO.

lamiaceae Loc: San Luis Obispo County, CA

I'm assuming you are just asking out of curiosity. I did have it removed from one camera but not for that reason. I had an older Pentax K-100D (6MP) converted to full time Infrared use. I believe more than one of the "filters" on the stock sensor are incorporated together. So I am fairly sure the AA filter is gone. Actually this camera does seem to have more resolution than it should now that the AA is gone. It is a CCD sensor, though, so with that, and that I bought the camera used and never shot normal images with it, I can only guess.

My Pentax K-20D and K-5 occasionally displayed moiré even with having AA filters. That can happen. Moiré is usually rather specific to subject (usually fabric), lens, distances, angles, lighting, etc. It can come and go just by moving the camera or altering a variable. So I've never found it to be a problem except with one covering on my sofa.

My newer Pentax K-3 (24MP) has no AA filter to begin with. I've only had this used camera (from a UHH'er) for a short time. But it seems incredibly sharp. I have not tried the AA simulator yet. Why bother when that will just reduce the resolution of my images. If I needed it for a particular fabric or lattice grid that produces moiré I can turn the "AA" effect on. (Note, I am curious about Pentax's Pixel Shift technology on the K-3ii, K-1, and I believe K-P. Though I hear it may be as much a problem as a benefit.) So far I love my K-3 w/o the fuzz-ball making AA filter.

lamiaceae Loc: San Luis Obispo County, CA

Not sure why dsmeltz got a few sarcastic replies. It was a fully legit question. I'm sure Life Pixel can remove an AA filter from a Canon, Nikon, or Sony DSLR. They have to remove the Hi & Low Pass filter assemblies when converting a camera to IR and/or UV use anyway. So I'm sure they can and would just remove the factory filters and replace them with the normal photography IR & UV blocking filter(s) only. Note, they don't seem to want to work on Pentax except the Pentax K-01 Mirrorless model. But, certainly this is no DIY job.

See www.LifePixel.com

Architect1776 Loc: In my mind

Is the moire issue not even noticed by a vast majority of the low end consumer camera users? They would have no clue they have the problem.

lamiaceae Loc: San Luis Obispo County, CA

I don't know about that. It can be pretty bad at times. Can ruin wedding clothing. "Consumer" types might not just recognize what it is. Also it shows or occurs more with lower pixel count sensors (meaning older). The density of 20-24, and beyond MP sensor cameras is much less affected by moire'.

Gene51 Loc: Yonkers, NY, now in LSD (LowerSlowerDelaware)

I found this:

https://www.lifepixel.com/photography-gear/anti-aliasing-low-pass-filter-removal

Basically, aside from a possible shift in white balance because when you remove the AA filter you also remove the infrared filter, there is no downside. Lifepixel replaces the IR filter with their own, making them a good source for AA filter removal.

rehess Loc: South Bend, Indiana, USA

What other changes did Nikon make when removing the AA filter?? Pentax put in a “filter simulator”, using their IBIS hardware, so there is no reason to think their low end users would ever encounter the moire issue.

Capn_Dave

Nikon does not make sensors, Sony does that.

rehess Loc: South Bend, Indiana, USA

Yes, they make the sensors used by Pentax also ... but who puts the AA filter on?

My question was, what other changes to camera did Nikon make when they stopped using sensor with AA filter???

billnikon Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont

First, you have to understand that camera's, like cars, are designed to work in harmony with ALL THE PARTS. If you remove one part, say from a new motor in a car, will the car run as advertised, probably not. Like wise, the Anti-Aliasing filter is designed to work with the software in the camera for the best results. Remove it, and the software would also have to be reprogrammed along with most of the firmware, IMHO, it would be almost impossible to do correctly. And I don't think any camera manufacture would do it or recommend it.

jerryc41 Loc: Catskill Mts of NY

I've seen ads for places that will remove them. I'm leaving mine in place. I think the absence of the filter would be considered in the design of the camera. I think LifePixel does it.

camerapapi Loc: Miami, Fl.

All of my cameras have the anti-alaising filter. I do know that the filters they have are so thin that I could practically say I do not have them in camera. In the majority of my files sharpening is not necessary in post.
I have never made the comparison between a camera with and without the filter but I have seen many prints from cameras without the filter and in my humble opinion they do not look that different from mine.
I know there are many photographers that swear by their cameras without the filter.
I do not know if it will be safe to remove the filter, I have no experience but what I do know is that once the filter has been removed the warranty is over.