Baader 3.5/4Nm O-Iii Cmos Filter 31Mm Ultra-Highspeed

Baader 3.5/4nm O-iii Cmos Filter 31mm Ultra-highspeed

Product Code: eq111842
Availability: In Stock

$912.00 $1,267.68

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Description
Reviews (11)

This 31mm, unmounted Baader 3.5/4nm O-III CMOS Filter 31mm Ultra-Highspeedfrom Baader 3.5/4nm O-III CMOS Filter 31mm Ultra-Highspeedis recommended for extremely fast optical systems from f/3.4 to 2.3 and is particularly designed for the special filter requirements of f/3 optics. The filter features a Reflex-Blocker hard coating, which has been optically polished, and has Life-Coat sealed edges. It is equally suitable for modern CMOS sensors as well as for older CCD camera technologies.

Optimized for CMOS, Suitable for CCD Reflex-Blocker Hard Coated Life-Coat Sealed Coating Edges

Parameters
Size	31mm, Unmounted

Related Questions and Answers

Q: 1. Does it work with Ursa Mini Pro own SSD drive?

A: The SanDisk 1TB 3D SATA III 2.5 Internal SSD B&H # SASDSSDH31T does not work with an Ursa mini pro. The ursa mini pro can record to either CFast 2.0 or UHS-II SD cards.

Q: 2. Dear B&Hthe only SanDisk that is compatible with the shogun inferno CDNG recording is the extreme pro 960gb and not the 480gb, this is in the table of the atmos comptabiliy Ssd drives, since it is discontnued is the SanDisk Ultra 2TB 3D SATA III 2.5 Internal SSD or the 1Tb compatible with the shogun inferno for CDNG recording, i think the atmos ssd table has not been updated for a long time, i just want to know before i go ahead and purchase the ssd ?

A: The SanDisk 2TB 3D SATA III 2.5" Internal SSD BH #SASDSSDH32T meets the basic system requirements for the Atomos Ninja Inferno media, however, it has not been tested and validated for use with it. For the best results, it is recommended to use media from the approved list on the Atomos website. List available here: https://www.atomos.com/drives

Q: 3. Hi. Will it work for a MacBook 2008?

A: Yes.

Q: 4. Hi, i have the Pentax K-50, will this lens work full auto on my camera or will i have to make manual settings?

A: Yes, this lens will work in full auto mode with your K-50. The lens has an aperture ring, and when set to the A position will provide full camera control of your f- stop. The lens does not have the quick-shift manual focus override like the newer DA series lenses, but that is the only limitation I know of. It is well built, vary sharp and has a nice silky smooth focus ring. It focuses very close as well. It is pricey, but it is my favorite lens so far.

Q: 5. This 31mm or the 35mm 1.4? Preference?

A: Selecting what is best depends on the job to be done. These lenses are not in the same class, the choice will be made on how high a quality of image and working experience is required. If the photographs are for personal use as well as experimentation in gathering different looks for an art piece, the Samyang 35mm f/1.4 AS UMC is as good as anything. If the photograph is for commercial paid work, then no question you want the rugged reliability and top level image quality of the Pentax smcP FA 31mm f/1.8. Clients will not be impressed with how much you saved buying the lower price lens if the image is not perfect or if the lens fails mechanically during the shoot.

Q: 6. What is the warranty period for the SanDisk SDSSDH3-500G-G25 500GB Ultra 3D SSD?

A: You first have a 30-day return period with us if anything goes wrong. Then you do receive a free manufacturer warranty with the purchase. That lasts you 3 years, if any issues, you contact SanDisk.

Q: 7. Is this lens weather-resistant?

A: The only Pentax lenses that are weather-resistant would be those labeled as WR, so unfortunately this one is not weather-resistant.

Q: 8. I have a K-30. I want this lens for group photos. Is it a good choice? Will it auto focus? Or do I need to learn manual focus

A: The Pentax HD Pentax-FA 31mm f/1.8 Limited (Silver) is an auto focus lens and compatible with the K30 camera. But since the number of people in a group will vary as well as the available distance between you and the group, you might want to consider this 16-50mm f2.8 zoom instead: https://bhpho.to/3ihSTRz

Q: 9. Does the new HD FA31mm F1.8 use a SDM motor?

A: The HD Pentax-FA 31mm f/1.8 Limited uses Body AF drive--the camera body supplies the autofocus motor. It does not use an SDM motor.

Q: 10. I want to buy one, is the one you are selling new package ? i.e. ricoh package, not the old pentax package

A: This is a new, unopened item. Actual packaging may vary pending how long it has been on the shelf.

Lovick	18/09/2024
[31mm, Unmounted] The CMOS air filter provides clean air for the Nitecore BlowerBaby, which gives additional assurance while cleaning camera sensors and lenses. 5

William	02/09/2024
[31mm, Unmounted] One of the best items I've purchased for my 140mm telescope. The reduction in sky glow and the contrast improvement add to those Oh, Wow! moments of star gazing. 5

Joanne B	29/08/2024
[31mm, Unmounted] What can I say about an air filter. It appears to be quality made, 5

Adam	28/08/2024
[31mm, Unmounted] Very nice. Could use one more thread though. Seems a little short on threading when trying to attach and remove while making lens changes in the dark. Makes me a little nervous sometimes that I will drop it during removal from the lens. Good quality though and I like having it around. 5

Jerzy	17/08/2024
[31mm, Unmounted] Fantastic view , great field. 5

Javier	25/07/2024
[31mm, Unmounted] Excellent filter 5

Harrison	03/07/2024
[31mm, Unmounted] I bought this to see if it would help bring out some color and detail for my astrophotography. I have little light pollution in my area but it this thing really does what it's supposed to. I did some test shots with a colorchecker passport in regular daylight and the difference is definitely noticeable. There's a very clear boost in color and slight boost in contrast, what I mean is that they appear more clearly and saturated. It's magic! I might even start using this for some regular photography too! I have to use step-down adapters to fit these onto my lenses as I am not using it with a telescope (67mm, 58mm, 52mm). I just wish they made these in sizes native to DSLR/Mirrorless lenses! Highly recommend! Also if you are someone purchasing for a DSLR/Mirrorless camera, Get the 2 version of course, and you will need step-down/step-up adapters to 48mm. Even though 2 is not 48mm, that is the threads for this baader filter. I recommend the sensei filter adapters, cheap and very well made. In order to adapt some lens sizes down to 48mm, you might have to buy a couple adapters and stack them. I had to do this for my larger 67mm lenses. There will of course be vignetting when doing this, but its no big deal to me. 5

Michael	01/05/2024
[31mm, Unmounted] There is no better narrowband green filter for astronomical observations and photography. I have been observing since 1974 and this filter has turned my achromatic refractor into an apochromat. Viewing on the Moon cannot be sharper eliminating chromatic aberration by using one wavelength of color and then converting to black and white monochrome. Baader's reputation exceeds itself. 5

Terry	29/04/2024
[31mm, Unmounted] Baader makes some great lenses and filters, I have yet to be disappointed and this one is no different. 5

Carlo	07/04/2024
[31mm, Unmounted] They work quite well; no halos or any undesirable behavior which I could notice as of now. They did require an increase in exposure time, but that's expected. 5