UHS-I Vs UHS-II - What do you REALLY NEED?
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- เผยแพร่เมื่อ 8 มิ.ย. 2024
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UHS-I Card: geni.us/SanDiskSDcard
UHS-II Card: geni.us/SonyUHS-II
SanDisk Reader: geni.us/SanDiskreader
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00:00 - Introduction
00:50 - PDFelement
02:22 - What cards
02:50 - Card specs
04:33 - Camera limitations
06:18 - Buffer clearing
07:59 - False video claims
10:55 - Video temperatures
12:16 - Transfer speeds
14:14 - Price
14:40 - Conclusions
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Love how the dog knew he was wrapping up the video.
Thank you for this video! This was exactly the information I've been searching of these cards
Very good discussion. Covered all the right "real world" card issues. I really appreciate your emphasis on "how you shoot" as an important determination.
Your videos are great help for me to take an informative decision. Much appreciated.
Great video as usual Dave... Thanks for the real specs!!
I thought this was going to be a waste of time BUT I WAS WRONG!!!! IT'S PERFECT!!! YOU ANSWERED THE PERFECT QUESTION - "WHICH IS MOST ECONOMICAL BUT STILL GIVES ADEQUATE RESULTS!!!!!!! FANTASTIC.... MANY THANKS!!!!!
Found you from the facebook group.. thanks for sharing ! Currently just ordered the exact SanDisk card as in the video.. never knew needed a specific reader for it to unlock the 170MBs read speed. Oh well another one in the cart !
Excellent tutorial. Very clear and to the point
Thank you so much Mr McKeegan, I sure did learn a whole lot from this video. Excellent. Thanks again. Hi Rusty...... You are such a good boy. :)
Great info. Thank you!
Thanks, this video was a great help for me, i bought the new pentax k3iii and I just bought 2 sandisk UHS I (I am an amateur who shoots most off all single shots , and very little video.
Nice and clear.
Glad I could help William :)
Thanks for this video.
I appreciate the insight that if camera has two different card slots and image is being recorded to both slots, the write speed will be limited to the slower of the two slots. UHS-II slot will be tied to UHS-I speed.
One addition to who might need UHS-II cards. I believe any camera capable of recording 4K@60fps or more will need UHS-II.
that's really informative and quality video of the cards!
Thanks so much for clearly explaining the differences. As I only shoot stills, sometimes at high frame rates (15-40 FPS) I think UHS 1 fills my requirements.
Sony A6300 User here, I´m using the SanDisk Extreme Pro 170 MB/s card (UHS-1) since about 3 years now. Recorded a couple 4K video clips with it. I´ve never recognized the tiny "V30" written onto the sticker! Very interesting, thanks Dave for pointing some unnoticed things out to us!
Thanks for the info! :)
Good info. What I care about most is the reliability of the card.
Excellent explanation. I am happy you mentioned maximum theoretical speeds. I feel like that gets lost a lot.
Thanks for your video. Well. That makes me decide to buy a 1T sandisk card.
I like your dog. He/she is reticent and happy.
I use UHS II - in some dual slot cameras the second slot is only UHS I capable but I dont want to be fannying around double checking what has to go in which hole - that should be reserved for the bedroom only!
Best video about sd cards i've ever seen because it reveals the truth behind fake numbers
Great explanation. Thanks.
You're welcome Bill :)
That was deep! learned a lot.
very clear explanations
amazing video thanks!! i just wanted to know how the #$^#@ did youre dog knew you were in the finishing line.... hhe was starting to wait just at the right moment.... amazing
great video! great ingo! awesome explanation!
Mostly correct information except at 5:50, the speed from the benchmarks is NOT the card writing speed but the buffer clearing speed, the camera actually writes to the card faster than 150MB/s, but it does other things (overhead) which is why the overall clearing speed is only 150MB/s. And that's why you get slower than 150 with cards that can write at - say 170MB/s, because of that overhead to factor in the calculation.
The total time it takes for the camera to transfer a file, T = To + Tc, To being the overhead time, and Tc being the card writing time, so if you use speeds instead: T = 1/So + 1/Tc, or S = 1/(1/So + 1/Sc). You see that the only way to get the buffer clearing speed == card writing speed is to have no overhead, or an infinite overhead speed, but it's actually limited to around 400MB/s, so that's why even if the card could write at 300MB/s, you would only get: S = 1/(1/400 + 1/300) = 170MB/s, and if the card writes at 250MB/s, you would get: S = 1/(1/400 + 1/250) = 153MB/s. And if you used a card that could write at 170MB/s, then you would get around 1/(1/400 + 1/170) = 119MB/s, etc.
I see a lot of people (including you) saying: "the camera can only write at max 150MB/s, so it's useless to get a faster card writing speed", well that's simply not true.
Excellent point, although with a 90MB/s card you'll still get over 70MB/s transfer speed so even though on paper the 300MB/s card appears to be over 3x faster than the 90MB/s, in reality it's actually much less than that (which is the overall point I was trying to highlight)
I’ve been using the same uhs1 cards in this video with my fujifilm xt3 since I bought the thing, and never once have I had issues shooting at 4k 24/30fps 400mbps using 10bit and flog. The only time it caps out is with 4k 60 400mbps which is something I’m not likely to use considering I can just use the 120fps anyway!
Really informative info. Thanks
Glad it was helpful Phil
Really helpful video. Thank you. Just subscribed :-). I have two of the 64GB Sony Tough G cards (300MB/s write speed). I just stuck one into my new Sony A7iv and it will only give me 792 uncompressed RAW still images (ouch). For wildlife photography I think the Sony Tough's really help (on burst mode) but they are pricey & it's easy to shoot 3000 plus images on a good day out. That would be at least 4 of the 64GB cards (at £100) for a days shoot. Toying with the idea of getting a LaCie Rugged BOSS 1TB and wondered if you had any thoughts about this - more memory cards or some other way of offloading the cards during the day so they can be re-used?
doggo hops in just at the right moment
Wished this video was a year ago lol Thanks for the information
Sorry for the delay :P
Omg, love the dog :)
I am about to buy cards for my A7III and I was thinking about SanDisk USH-I V30 not sure if it will handle 4K recording so this is great help thanks.
Hello Dave, I have had the Canon R8 for 4 months, and it records at 340 Mbps / 42.5 MB/s in 4K 60p, and I have always used it with a SanDisk Extreme v30. I only remember one time when the recording stopped, but I have noticed more banding than I expected from this camera in 10bit 4:2:2 clog, I bought a v60 card to test, but I have not received it yet, do you think the banding is Is it due to the v30 sd or is the format in which the camera records very poor?
Imagine you are cameraman for a news organisation. You come back from an important event. You want to be the first to edit and publish the video. It makes a difference if the clip is on the news at 7:55 or at 8:10 because you needed 15 minutes longer to copy the files back and forth and edit it, due to a slow SD-Card. This is the area where any minute counts. You don´t want to miss the deadline just because of a slow SD-card.
I dont even know why am I watching this but you are being super helpful. I am just shopping a SD card for my car video recorder, lol, it ended up I bought a wrong 128GB SDXC Sandisk Extreme Plus ( the price just too good) which my car doesn't even support, then I am trying to figure out what should I buy, I read the car manul says SDHC 32 GB Class 10. so I bought another Sandisk Extreme Pro 32GB SDHC from Amazon wish it can work, lol. Good to learn the development of these tiny memory cards over your videos so quickly. thank you.
What card would you recommend for the a9 ii? Thanks for this video
I did not notice the dog until it moved at the end and scared me!
PS: near the end of the video, Rusty is looking at you, like you are crazy, wondering who in the world you are talking to. Just an extra though. Thanks again.
Smart dog. He knew it was the end of the video.
@@billkaroly that was adorable, he knows the outro 🥺
You were sublime.
Now I’m really confused, doesn’t take a lot.... was taking some shots on my A7R4 haveing filled the SDXC II card had in 2 san disk ultra 80mb/s and noticed I could access all the menu functions as it was still writing to the card after 3 images. I’m not so fussed about the write speed to download on to the computer but want the camera buffer to be the rate limiting step for stills. How does one work this out for any camera body? Don’t mind paying for a good card if it is good, but find the cheap sandisk fine for the odd snap no pressure on time, garden flowers and not birds in flight?
Can you get the benefits of the Sandisk card reader if using other brands of SL cards?
I assume 5:20 is only valid if the same file type is written to both cards. If card 1 stores RAW and card 2 stores a JPEG backup then the write speed will probably differ (I don't have SONY so can't verify)? But buffer will be cleared only at the speed of that card that takes longest for writing the current picture file.
So if you have a setup of storing RAW to your fast card and storing JPEG as backup to a second slower card you still can benefit from the faster card, because a RAW file might be e.g. 3 times bigger than a JPEG file but both card slots might finish writing one image at the same time due to the higher speed of the first card.
My setup (on an Olympus also with one UHS-II and one UHS-I slot) is a small size UHS-II card for writing RAW and a big UHS-I card for writing JPEG backup copies + video. This way you can balance costs by not buying a big UHS-II card for video (and instead use the cheaper UHS-I card) but still getting the smoothest experience when shooting pictures and storing the bigger RAW files quicker to the UHS-II card and storing the smaller JPEGs to the slower UHS-I card.
Excellent video 👌
Agree with your findings 100%. I don’t think that we’ve exhausted the capabilities of the UHS-l just yet. The other pieces of the hardware chain needs to catch up for UHS-ll to be fully appreciated.
Do you still think ush 2 is not worth upgrading over ush 1??
@@LoLo-vh2hn If you can find a good deal in a UHS-ll card that suits your purpose now, sure, go for it. That’s future proofing. I’ve got a couple of Lexar Professional UHS-ll cards that only show their speed when I’m downloading large amounts of 4K video files to my MacBook, but on the camera these new cards function no differently than my UHS-l V60 cards
Man I thought the dog wasn’t real, great video mate
Hi B&H store told me that for my Panasonic Hc-x1500 camera which records up to 4: 2: 2 All Intra is long gop 200mb uhs-ii cards are useless as the camera only supports Uhs-1 in your opinion is correct?
Very good video 👍
I'm wondering how the card read speed can affect the user experience when reviewing large raw images in the camera?
I don't think there is much noticeable difference when reviewing images, I've not tried with high resolution cameras but the A7III uncompressed raws are 48MB per file and they load perfectly fine on a UHS-I card
Do they read the raw file? I was under the impression that it just reads the .jpg thumbnail attached to that raw
awesomeness 🙏👍
Need this for Steam Deck. It would be great
Will UHS II shoot 120fps?
Hi, I have a Sony AX700, but it accepts UHS-I. If by chance I put a UHS-II card will it work?
(I'm using a translator to write)
Sure it will work but without UHS-II support you will not get any benefit.
Hey Dave, firstly thanks for the videos on the SD cards. I am new to the camera world and so far have only been shooting on my iPhone, but am waiting for my Sony ZV-1 to arrive in the mail. Now I am SD card shopping, and I am pretty sure I am going to be fine going with an Sandisk Extreme card, as it seems to be the same as the Extreme Pro, albeit just slightly lower read and write speeds. Seeing as the ZV-1 maxes out at 4k 30fps, I believe I will be fine going with the Extreme SD card and saving a few bucks. What do you think?
Also, next year I am going to be picking up a drone (dji mini 2) and it takes microSD. So I am thinking about just getting Sandisk extreme microSD for my ZV-1 as it will also be compatible with my future drone, and based on your other video, the microSDs seem to only be a tad slower. Let me know what you think but Im pretty sure I will go with the SanDisk Extreme MicroSD!
Thanks again Dave!
The read and write speeds stated are just theoretical maximums, in reality you'll likely find the sustained write speed of the Extreme Pro's are a fair bit more than the Extreme.
The Extreme's are still U3 cards though so shouldn't have an issue with recording 4K on the ZV-1 although you may notice a difference if you're shooting stills a lot
@@DaveMcKeegan Thanks so much :)
i own a7riii, will this apply as well due to the bigger size files? thanks you
Bro am from kerala u video nice but little confusion may be am from Kerala... Am buy to canon r10 for 4k video shoot events function which memory card best pls reply... ♥
And.... Dave puts things to us in clear English again. Dave, can I put a request? A Test of Sony Imaging Edge Mobile. I can connect to my A7III, control the camera, transfer to the iPhone, all that is not important to me. But the Locations Services, to geotag my photos simply never works. Just a message looking for camera, even though everything else works. Tks and best rgds to Rusty.
Hi Dave after watching this very informative video I purchased both a new card and the card reader you recommended. Very happy with my purchases, one gripe, Amazon will only sell you 2 card readers, can’t just buy one?? ‘So I bought 2, as ya do’. Will sell on to a mate. Just a tad annoyed with Amazon, it’s not like they need the extra £12.00. Thanks again for the info. And if you do find out why I had to buy 2 readers, let me know. Cheers. Phil
That's strange Phil, anytime I've seen the reader on Amazon it's only ever been sold individually or as part of a bundle with a memory card - never seen it as 2x card readers.
Perhaps that'd let you return one of them if you can't sell it on
I was shooting simultaneously and now on Sony card on camera there is error coming 😕
Cool ! Laszlo Montreal
PSA: If you're using some Fujis as well, the 10-bit 4k can output at up to 400Mbit/s, so it's not just RAW or high-fps video. You should always check to understand what your camera needs for each format it can output.
Which card would you recommend? UHS-II V90?
@@mitchgourley3082 AFAIK 400Mbit/s is the highest bitrate offering on a Fuji. Divide by 8 (since 1 byte= 8 bits) to get the byte-rate. 400/8 = 50. So a card with more than 50 MB/s sustained write should be enough to handle a Fuji post X-T3. That gives you the option of buying a UHS-II V60 card. That will be somewhat cheaper than a V90 card.
Its the same like having 4k video on phones for Instagram. 720p would also be enough for a small smartphone screen, but 4k sells better.
Canon eos r does 480 megabits per second should I use uhs ii
Hi Dave, i just bought a Sony a6600 for mainly shooting videos. Sony store customer service gave me a link (SONY SF-E128 SD Card 128G 270MB) when i asked about SD card and told me no need to worry about UHS-II and UHS-I problem. Is this the best option? Can give me any advice on what to buy?
The A6600 has a UHS-I card slot, so a UHS-II won't give you any extra performance in camera - the main factor to consider is the read speed for when you're transferring files to your computer, but those SF-E cards you were shown have a max read speed almost as fast as the fastest UHS-II cards - so these would be a perfectly good option.
Stupid question would a higher writing speed card help when using the Sony panoramic mode that uses rapid fire and then stitches the images together?
I don't believe it would make much difference compared to the gains seen in normal shooting, the panoramic stitching is all dealt with in camera by the processor, the cards will only affect how quickly the files can be unloaded
just realized you have your dog up on the table there
I have the R6 and have been using my old 256GB microSD from my that i took from my 6Dmkii and have been recording 370mbps video with no problems even though canon states you need V60 uhs-ii. 10 minutes in this format is about 25GB.
If I have a Canon EOS R10 and shoot at 1080 120fps what would you recommend? I'm leaning towards the 128GB UHS I.
Thanks for saving me some cash 👍
So much truth here....just buy memory cards based on what camera functions you need to unlock. With my a7siii I am typically just needing V60 rated cards to shoot in everything I need. If I need to shoot 240fps I use a V90 Sony card I have but my main cards are V60.
Love the shirt ;]
the dog woke up in the end of the video like, "Are you done yet?"LOL
Cameras typically overheat in their processors and/or sensors, not the memory cards.
will the reader on the laptop read UHS II? or just uhs i? do i need any additional device?
You're better checking the specs from the manufacturer
Card readers vary from laptop to laptop, some models have UHS-II, some UHS-I, others might have slower than that
thanks for the video. i was about to spend on the 300mbs sandisk but seen a 512 200mbs for cheaper so wanted to research and came across your video the 512 read speeds is 140 mbs sony tough 256gb is 150 mbs and im good with that. thanks again
One thing to consider is opting for two 256gb SD cards as opposed to one 512gb SD card to ensure you have a backup. Someone recommended this when I was looking recently and asked a similar question.
Where is the dog lying on the dog bed on top of the table?
I can't even tell if my microSD port on the laptop can read UHS-2 cards or not.
Can you use both versions in any camera?
Yes you can, UHS-I & UHS-II are backwards compatible with each other, meaning any camera that has either card slot type will be able to accept either memory card, but obviously the maximum speeds will be dedicated by what the slowest protocol is being used
The Kingston UHS-II reader that comes with their Canvas React Plus line of SD cards will read the Sandisk Extreme Pro cards as fast or faster than the Sandisk reader. Using CrystalDiskMark 8, I got a read speed of 181 mb/s with the the Kingston reader and 175 mb/s with the Sandisk reader. An interesting side note is that the Sandisk UHS-II reader doesn't have the same technology as the Sandisk UHS-I reader and therefore can only read at 99 mb/s. Sandisk confirmed this and it really doesn't make sense....but it is what it is.
Thanks for the info Bryan, that's certainly great to know
This comment is invaluable. I thought I needed to buy the SanDisk UHS reader, but the reviews are so bad and I know I needed to find another one. You helped me on finding that Kingston MobileLite Plus UHS-II reader is the way to go, even many reviews say it's speed on SanDisk UHS-I card are maxed out. Thanks Brian.
How does Blue ruin a photo?
hi bro
maybe silly question
UHS-II can use in smartphone?
Yes they should as long as your phone can accept a memory card, UHS-II is fully backwards compatible so should work fine except your phone might not be able to reach the maximum speed that the card can achieve
Or u can wait for black friday and buy memory's card then :D.
You can get a 128gig UHS2 at 250MB/s for $35. To go up to 300MB/s you need to spend over $100.
Is it worth it??
the panasonic GH5 and GH5s from 2017/2018 can record video at 400 Mega bits per second, but i guess sony fanboys dont know that such consumer grade kit exists.
The EOS R shoots its cropped 4k with 400 Mbits a second too...but yeah for a Sony fan boy the EOS R is a pro Hollywood camera 😂
Hence I said "most" not all - and those cameras still require v60 cards for 400Mb/s
rusty knew you were about done around the end and wanted to be petted
Gj
So we spend thousands on bodies and glass, but cheap out on memory cards. Lol, just get the fastest card your camera body will except people. 🤣
Got sandisk uhs 2 v90 300mb 256gb for slot 1 and sandisk uhs 1 v30 200mb 516 gb for slot 2 on my Sony A7 3 cost me $410 plus change 🥹