Using the Sigma 30 1.4 DC DN on a Sony fullframe mirrorless camera
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- เผยแพร่เมื่อ 29 ก.ย. 2024
- Looking for a poor man's fast 35mm prime lens, I tried to hack the Sigma 30mm f1.4 DC DN Contemporary lens, made for APS-C mirrorless camera. Unfortunately it didn't act like the Sigma 30mm f2.8 Art lens: removing the rear plastic baffle didn't effect the strong vignetting. But, with a little post-processing crop (easy to do with a batch crop in Lightroom over hundreds of pics in just few seconds) I can obtain a nearly 38mm field of view with a f1.4 max aperture. This lens gives good sharpness, good contrast and saturated colors and also a nice bokeh.
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This video is made with:
- Sony a7sII camera - amzn.to/2mRiCpq
- Sony 50mm f1.8 FE lens - amzn.to/2m9OiSF
- Davinci Resolve 12.5
In this video:
- Sigma 30mm f1.4 DC DN Contemporary lens - amzn.to/2nezTpS
- Sony a7r camera - amzn.to/2mt9XHj
- Music: Branches by Malaventura
- freemusicarchiv...
why the dislikes for?? An important informative video... thanks.
Thank you. This is the result I've been looking for.
Thank you for your feedback ;)
Good for video?
Grazie
How about sigma 16mm 1.4 remove rear baffle on full frame?
I don't own this lens so I can't try it. Sorry.
@@NicolòMoioli thank you
Did you find an answer?
I thought this lens was meant for full frames and my apsc was having a crop factor on it 🤣🤣 guess I am gonna get a 50mm now
Can someone please explain what im missing, this is an apsc lens and my a7iii has apsc mode so that would cancel the vignette right? The only way you have this vignette issue is if you shot on a full frame camera in full frame mode right??
Yea
I was kinda dissappointed that the hard vignette was smaller than the 16mm 1.4.. but then you removed the baffle & I shat bricks. I did not expect that. Cool trick.. really considering getting that A7siii & keeping my Sigma Primes & getting a Tamron Zoom to keeps things light.
Are there other options in this focal length and price for full frame?
This is literally my kit. The Tamron 70-180 is an all around champion for whatever the Sigmas can't handle.
Thanks for showing this use case, really helpful.
or just use 1.3X clear image zoom or crop mode?
but then you cannot shoot in RAW
I have used Canon EF-S lenses successfully on A7 III with APS-C crop mode. Of course I lose resolution in photos but no post proc needed to remove the Vignetting. Would not the same work for this lens too?
This lens can work exactly in the same way as EF-S lenses do. But... in aps-c mode, a 30mm become a 45mm and i needed something a little wider ;)
Am I doing something wrong here? I have the same lens but mine does not show the vignette at all. It works quite well actually. Using a a7ii
I think your camera is set to auto lens correction so when you attach the lens it croppes it to the perfect size
Can i use this kind of crop in videos too?
Yes, for shure.
The DC HSM ART version (for DSLR) covers way more sensor surface. Using it on full frame I have little vignetting wide open and easily removable in post, stopped to f/6.3 is totally gone
I can confirm that.
So this doesn't work with a7C? I just ordered this I'll have to cancel it. What other options do we have in this focal length and price
Just use Sony native
There are many good options in non native lenses...
@@NicolòMoioli after 7 months your response is vague lol. Smh
@@MR-AK Sorry, I was answering to themondoshow, non to you, as I presumed (and hoped!) you didn't wait for my suggestion on whether or not cancel the a7C order or what lens to buy... Unfortunately, I'm not really active on my youtube channel. Anyway, did you get your a7C? And what lens did you choose?
It works, however the image projected by the lens doesn’t cover the entirety of the camera lens so you have to consider a few things. 1.) put the camera into apsc mode and it will crop the image in camera so you don’t see the area that the lens doesn’t cover. 2.) leave the camera in full frame mode and crop out the area that the lens doesn’t cover after you export the photo or 3.) leave the camera in full frame mode and use clear image zoom to hide the areas where the lens doesn’t cover. Another thing to consider, when doing video in 4k 30p on the A7C the camera automatically crops in 1.2 times which I’ve found nearly removes the areas that the lens doesn’t cover and leaves a nice looking video with full focus capabilities.
perfect. thank you for posting it :)
Very useful. Better yo look another one when using a full frame caméra. Many thanks
Thank you for sharing, very interesting info.
very helpful thank you so much!
Glad to be helpful ;)
Really love the music, what’s it called ?
"Branches" by Malaventura
Music is horrobile
Thank you :D
Thanks you for thia test! How is the sharpness at the corner? Still one of the sharpest lens?
It has been a long time since I had this lens. I don't have it, anymore because I sold it. Anyway, i remember very good sharpness, even at the corners. It's a little soft at wide open but it's always a good performer.
Thanks bro ,
You should buy Art version which has no tubelike picture on FF, only slight vignetting
Art version has a very little vignetting effect but it's an f2.8 lens. I was looking for something with wider aperture;-)
So this wont be as good or as sharp if i use it with the AP crop mode? I have a a7ii and im planning to buy it. My main concern is losing quality and not having a fast focus
The focus will be fast as well as fullframe lenses. The quality, also, will be high but you are loosing resolution.
How about image quality?
Image quality is superb!
@@NicolòMoioli it's a shame it's 10mp
@@joaovieira3487 26mp if using a7riv
thanks, i allmost got it for my a7sii, now i wont get it
What did you get instead? I was just about to buy this haha
yes you can do that automatic inside the camera. the main problem is we will lost the image quality and the pixel. it make our image smaller that the usual and our image quality is poor. so how you deal with that?? can you fix it ?? 15 MP will be lost
pijatan studio sure you can do the automatic in-camera crop but, doing so, you will loose a part of good image (you will obtain a 45mm equivalent instead of a about 38mm equivalent). Doing crop you won't loose image quality but you'll just have a lower resolution. The solution is to use a high res camera: an a7r will give you about 28mpx, a 24mpx a7 will give you about 18 mpx while an RII or an RIII will give you about 32mpx. That's not so bad and, definitely, not so poor. the fix to this issue is to buy a full frame 35mm lens which costs much more money.
i am using a6000 a6500 and a7ii. for the first time using an apsc lens mounted to a full frame body i felt it wooww.. and still 3 or 4 project i don't realized that the image turn into a small file.. and i got curious when i saw my files is only 1 or 2 mb each photo..then i zooming in the photoshop i got disappointed about that.. i thought that i can use it just same like canon lens (red dot) can used by apsc and ff body without loosing an image quality and mp. so i search for the solution or tutorial how to use apsc lens into a ff body without loosing an image quality and alsoMegapixel till now i can't find it.. if the only solution is to buy a ff lens, for now it is to expensive for me to buy it. heheheheh
Canon red dot lenses are for fullframe. You can use them on a FF camera as well as on an APS-C camera. You don't loose quality or resoluzion and you'll not have a cropping factor. BUT, if you take a square white dot canon lens, designed for the APS-C sensor, and mount it onto a FF camera, you'll see that the camera automatically switches to APS-C mode, lowering (halfing) the image resolution.
EVERY FF camera of every brand act the same as Sony and as Canon. When you mount an APS-C lens on a FF body, the camera switch to APS-C mode. Again, you won't loose quality, you just loose resolution (and, obviously, you reduce the zooming ability in photoshop)
ok thanks for the explanations... but i have one question about sony lens.. that can used like canon red dot lens.. is there any sony lens system like canon lens system?? for example red dot lens tah can use by ff and apsc without loosing the resolution?
pijatan studio any Sony marked as "FE" can be used both on aps-c and FF cameras without loosing resolution, while the ones marked just with the "E" letter are intended to be used on aps-c cameras. The top lenses of the Sony system (like the L series on Canon system) are the "G Master" ones (GM)
Ciao , ma questo obiettivo va bene per sony A7 S II , grazie
Puoi montarlo ma lavori solo in APS-C, quindi non è consigliabile
ciao ho una sony a7iii e già uso un ottica apsc su questa macchian quale il sigma 18-35 ma mi piacerebbe avere un medio tele molto più piccolo e compatto del 18-35 da usare anche su un piccolo jimbal. Croppando dovrebbe diventare circa un 45 massimo 48 mm quindi abbastanza versatile. Mi piacerebbe sapere se in video la qualità rimane la stessa che se lo provassi su un a6500 e anche l'autofocus se va
Ciao. A livello di velocità e precisione di AF funziona tutto come sulle altre Sony. Anzi, sulla 7III dovrebbe essere più performante che sulla 6500. Anche a livello di qualità di immagine, sulla 7III probabilmente performa meglio, in virtù della sua densità inferiore di pixel rispetto alla 6500. Non sono però del tutto convinto che sia una buona scelta (sia come lunghezza focale che come apertura) da montare su una gimbal: presumendo di muoverti molto, con la gimbal, credo sia più utile avere una focale più corta e un diaframma più chiuso per avere la maggior profondità di campo possibile e non impazzire coi fuochi
@@NicolòMoioli pensi che usare il 28 mm f2 sia in fullframe che in apsc mode sia la soluzione piú efficace?
@@matteo_oz3557 si, per me lo è senza dubbio, anche perchè il 30 Sigma non è proprio piccolissimo e compatto. Se non hai bisogno di aprire ad 1.4, troverai nel 28 un buon grandangolo che non deforma su FF e un comodo 42mm corrispondente, se usato in APS-C.
@@NicolòMoioli aggiudicato
thanks
Thanks for the test. Does the focusing work ok, including AFC? And eyeAF?
Hi. Unfortunately the 7R used for the test doesn't have the eyeAF function. The AFC does work quite well but, again, the 7R's AFC is quite a bad performer.
@@NicolòMoioli Thanks
Is there a full frame lens similar to this 30mm for A7 III?
라사 not so similar, you can find the 35/1.4 and the 35/2.8 samyang.
Thank you so much for the recommendation. I'll surely check them out.
The closest you will get to 30mm is the 28mm f/2 Full Frame, a very good lens.
@@사라-t9g the rokinon 35mm 1.4 is good too. You can find them on Ebay for about 250! If you dont care about price the zeiss sel 35mm 1.4 is around 1000.
what about Zeiss Touit 32mm f/1.8 ??? is it only for APSC or i can use it for a7sii for video shooting ?
I don't really know anything about the Touit. It's for sure an APS-C lens and so maybe it'll vignette on FF and also it's very expensive. Anyway maybe the new Samyang 35/2.8 is a good choice for a FF lens on a budget.
Why would you want this on a full frame?
As said, I was looking for a fast and cheap near-35-mm lens.
Hi Nicolo,
I'm planning to get this lens for my Sony a7M2 and im confused if it needs a Converter for using it on my Sony A7M2 body..?
Hi! You cannot mount it on a 7 body without having a strong vignetting. Also, you will need to crop every single image in post. I do not suggest you to buy this lens unless you're happy to deal with a cropped sensor and reduced image resolution. Unfortunately there is no adapter to transform a DX lens into a FF lens.
Nicolò Moioli thanks so much..:)
Great video!
For those that seem confused in the comment sections… the authors intent is to show how much image is projected by the crop lens across a full frame sensor. Since it doesn’t cover the entirety of the camera lens, you have to consider a few things. 1.) put the camera into apsc mode and it will crop the image in camera so you don’t see the area that the lens doesn’t cover. 2.) leave the camera in full frame mode and crop out the area that the lens doesn’t cover after you export the photo or 3.) leave the camera in full frame mode and use clear image zoom to hide the areas where the lens doesn’t cover. Another thing to consider, when doing video in 4k 30p on the A7C the camera automatically crops in 1.2 times which I’ve found nearly removes the areas that the lens doesn’t cover and leaves a nice looking video with full focus capabilities.
To avoid all the above work arounds, many choose to only use full frame lenses on full frame cameras. However, those lenses tend to be heavier and more expensive.
With APS-C lens, you want to activate the super 35mm mode to have the crop mode. Hassle-free post editing and no need to mod your lens
You're right but doing this, you'll have a 45mm equivalent focal lenght. My target was to have a fast 35mm equivalent lens.
WHOOOOOOSH
mipblackhawk the point is that modding the lens makes no difference, shooting the crop lens in full frame mode gives you a wider field of view and more pixels than using in crop mode.