AF50mm f1.4D VS AF50mm f.1.8D

[gymak90]

Hihi, what does the Aperture Ring do? Read somewhere that the new 1.4AFS does not come with Aperture ring, but not sure what's the implications.

Depends on what camera you're using.

With or without aperture ring makes no difference, if you're using a dslr.

However, on film slr, you must have a aperture ring on lenses to control the aperture. The camera can't set it for you.

 

[jnet6]

Hihi, what does the Aperture Ring do? Read somewhere that the new 1.4AFS does not come with Aperture ring, but not sure what's the implications.

Do you have old film cameras like FM series?

If not, bypass and go for the AF-S 50mm F1.4 G lens.

 

[yyD70S]

If you are just starting digital (esp. FX), and have not a 50mm lens, go straight for the AFS 50mm f/1.4

Assume money is small concern. This is an equipment forum.

 

[xxccxx]

Wait, I thought f1.8 to f1.4 is a difference of 1/3 stop? Or is it 2/3? If it's 2/3, then what is 1/3?

85mm can be restrictive. You need to stand further back from your subject, compared to 50mm. But this can be a good thing, because rarely would people like having a lens right in front of their face.

Plus, 85 gives thinner DOF.

f/1.6

I am also confused. :dunno:

I thought 5.6 / 2 = 2.8, so 2.8 is 1 (1+1=2) full stop compared to 5.6.

Similarly, 2.8 / 2 = 1.4, so 1.4 is 1 (1+1=2) full stop compared to 2.8.

So, since 1.8 / 1.3 = 1.4, then 1.4 is 0.3 (1+0.3=1.3) stops compared to 1.8, and 0.3 is about 1/3 stops, right?

Anyway, I am very suaku... cuz I never heard of 1.6... :bigeyes: :sweatsm: :embrass:

 

[ExplorerZ]

I am also confused. :dunno:

I thought 5.6 / 2 = 2.8, so 2.8 is 1 (1+1=2) full stop compared to 5.6.

Similarly, 2.8 / 2 = 1.4, so 1.4 is 1 (1+1=2) full stop compared to 2.8.

So, since 1.8 / 1.3 = 1.4, then 1.4 is 0.3 (1+0.3=1.3) stops compared to 1.8, and 0.3 is about 1/3 stops, right?

Anyway, I am very suaku... cuz I never heard of 1.6... :bigeyes: :sweatsm: :embrass:

need to read up more on aperture, ur basic is already wrong...

f5.6 is 2stop from f2.8... f2.8 > f4 > f5.6,
same goes for f2.8 and f1.4... f1.4 > f2.0 > f2.8
and yes, there is a f1.6 which goes f1.4 > f1.6 > f1.8 > f2.0

 

[STTNP]

Dont think 1+1=2 here
Buy a good book to read and you will understand why f1.4, f2 and f2.8......must understand the basic like focus length, why 200m f2 is big and heavy, Prime lens produce better colour, sharpness etc.
Also you need to understand how lens determine f1.4 ,f2,f2.8.........

 

[jnet6]

Dont think 1+1=2 here
Buy a good book to read and you will understand why f1.4, f2 and f2.8......must understand the basic like focus length, why 200m f2 is big and heavy, Prime lens produce better colour, sharpness etc.
Also you need to understand how lens determine f1.4 ,f2,f2.8.........

if still cannot, nvm get ready yr money and buy 200mm F2 and use it. you will understand in the end. although is a very expensive lesson but you gain from it.

 

[freezemaster]

i think i would go for the cheaper one? i am not too rich so i won't pay $200 more for the f/0.4 diff

 

[jnet6]

i think i would go for the cheaper one? i am not too rich so i won't pay $200 more for the f/0.4 diff

no worries, try the 1.8 first.
If tempted by the 1.4 later, sell the 1.8 and get 1.4.

I went through the road so i know.

 

[xxccxx]

need to read up more on aperture, ur basic is already wrong...

f5.6 is 2stop from f2.8... f2.8 > f4 > f5.6,
same goes for f2.8 and f1.4... f1.4 > f2.0 > f2.8
and yes, there is a f1.6 which goes f1.4 > f1.6 > f1.8 > f2.0

Dont think 1+1=2 here
Buy a good book to read and you will understand why f1.4, f2 and f2.8......must understand the basic like focus length, why 200m f2 is big and heavy, Prime lens produce better colour, sharpness etc.
Also you need to understand how lens determine f1.4 ,f2,f2.8.........

if still cannot, nvm get ready yr money and buy 200mm F2 and use it. you will understand in the end. although is a very expensive lesson but you gain from it.

Heeheehee... Sorry ar... display my ignorance to all the gurus... :sweatsm: :sweat: :embrass:

Anyway, I am using the f/1.8 one. Cuz as u can see, I am no expert, therefore cannot justify the 3x$ for the small increase in aperture. But I'm well satisfied with the f/1.8.

 

[picofemto]

very simple. go for f1.4 if you have plenty of money. otherwise just choose f1.8. good enough and just keep it as long as you don't give up your photography.

 

[gymak90]

very simple. go for f1.4 if you have plenty of money. otherwise just choose f1.8. good enough and just keep it as long as you don't give up your photography.

Yup I second to that.

There is only marginal difference between f1.8 and f1.4. F1.4 performs marginally better at wider apertures, it retains more colour, gives slightly nicer bokeh.

You pay that $200 premium for those. You can justify the extra $200 if you want those stuff. Else get the f1.8, it's pretty good already.

 

[jiewei]

hmmm.. i think i also going to get the 50mm f/1.8 already ... isit manual focus ?

 

[yyD70S]

The 50mm f/1.8 is available in both the AiS (manual) and AF. Take your pick.

hmmm.. i think i also going to get the 50mm f/1.8 already ... isit manual focus ?

 

[AMediaLuz]

Yup I second to that.

There is only marginal difference between f1.8 and f1.4. F1.4 performs marginally better at wider apertures, it retains more colour, gives slightly nicer bokeh.

You pay that $200 premium for those. You can justify the extra $200 if you want those stuff. Else get the f1.8, it's pretty good already.

If I am interested in taking movements in low light (e.g. street performances at night), would it make more sense to get the f1.4? Or would the performance be marginal as well?

 

[.Hack]

hmmm.. i think i also going to get the 50mm f/1.8 already ... isit manual focus ?

Like what bro yyD70S said, there is the MF, as well as AF versions.
But take note some cameras like the D40/D40X will not AF even if you get the AF 50mm.

 

[ExplorerZ]

If I am interested in taking movements in low light (e.g. street performances at night), would it make more sense to get the f1.4? Or would the performance be marginal as well?

performance i dono, but having 2/3 more light would yield you 1/50s rather than 1/30s which could prove to be significant. but then you be paying for that 2/3.:bsmilie:

 

[David Kwok]

I am also confused. :dunno:

I thought 5.6 / 2 = 2.8, so 2.8 is 1 (1+1=2) full stop compared to 5.6.

Similarly, 2.8 / 2 = 1.4, so 1.4 is 1 (1+1=2) full stop compared to 2.8.

So, since 1.8 / 1.3 = 1.4, then 1.4 is 0.3 (1+0.3=1.3) stops compared to 1.8, and 0.3 is about 1/3 stops, right?

Anyway, I am very suaku... cuz I never heard of 1.6... :bigeyes: :sweatsm: :embrass:

(1.8 * 1.8) / (1.4 * 1.4)

f/stops for aperture are comparing the relative size of the area of the aperture, based on PI * r^2

 

[David Kwok]

I don't swear by 50mm f/1.8 AFD nor 50mm f/1.4 AFD, because I have used both and obviously I keep f/1.4. 50mm f1.4 AFS should be better not because it's newer, but because the MTF shows better performance in colour and contrast, and having a 9-blade aperture gives better OOF circular disc. Nevertheless we are expecting the bokeh to be better, but this can only be confirmed upon inspecting the real deal.

If you are a low light shooter, I highly recommend f1.4 because of it's performance. That 2/3 stop may not be alot, but when you are doing a night shot, every ounce count. So the decision is therefore you are willing splurge on it and then have every meal bread and water :bsmilie:

Unfortunately, I must say at both wide aperture, at high contrast scene will render purple fringing at those edges of highlights which is really to me preference such a screw up! I have to use DxO to really fully remove them, but it doesn't looks too nice for my expectation too. With Nikon 24-70, I hardly get them but of course it's not apple to apple comparison here. Also, it is relatively soft at f1.4, well what do you want at night ? Noise or soft ? Choose one. For me, I compromise, I end up using f2.8 on my 50mm f/1.4. Call me silly, but yeah... I don't care. I just switch between 2.8 and 1.4 as and when I prefer, depending on scene requirement.

It's your call

 

[boyboy]

if you can well afford it, get the F1.4. the difference is small but u will appreciate the extra (i think it's 1/3rd but not sure) f-stop and the extra shallow DOF. i remember that the F1.4 is less plasticky than the f1.8 also

if budget is a concern, the 1.8 will be good enuff. 1.4 is a bonus. i've got the F1.8 but i used the F1.4 before. AF for both is pretty fast even without AFS. AFS more critical if you really need quiet AF (to me, normal AF isn't that loud la).