So I finally got a 75mm

Started Apr 1, 2013 | Discussions
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Louis_Dobson
Louis_Dobson Forum Pro • Posts: 27,315
So I finally got a 75mm
2

Been too busy to use it, but we snatched this before I flew off to work...
Nice lens.  Happy.

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P S Senior Member • Posts: 1,391
Re: So I finally got a 75mm

Nice portrait! I wonder how it compares with the 45 mm/f1.8 as far as for portrait taking is concerned. The 45 mm is so much cheaper. Here is one I took with the 45 mm (EM5, ISO 200, 1/100 sec., f/1.8).

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PS

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James Pilcher Veteran Member • Posts: 8,434
working distance

Although many folks like the Zuiko 45 f/1.8 for its small size and easy price, I appreciate the working distance that the 75mm offers; even the 45mm is a bit of an in-your-face lens for this kind of portrait.

I look forward to more of your 75mm images.

Jim Pilcher
Summit County, Colorado, USA

Louis_Dobson wrote:

Been too busy to use it, but we snatched this before I flew off to work...
Nice lens.  Happy.

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
Re: So I finally got a 75mm
2

I don't think anyone should be considering a 75 for portraits before a 45.  The 75 has shallower DoF, less CA, forces you to move further away and costs a fortune.  
However, if you have a 45 and sometimes want shallower DoF, or you want a fast shortish tele, and don't mind the price, it seems pretty good so far.

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
Re: working distance

Thanks.  Yeah, but it's a bit long for anything but portraits.
I've lost all my models these days, so I doubt I'll be using this lens a lot - hence the not buying it at launch.   I'm sure I'll enjoy it when I use it though!

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
and again.

For completeness, the other one...

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BingoCharlie Contributing Member • Posts: 849
Re: and again.

I'm renting this lens in a couple of weeks.  Looking forward to putting it through its paces.  Nice shots.

Ulric Senior Member • Posts: 3,552
Re: So I finally got a 75mm
1

The DOF is so shallow that most of her face is out of focus.

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G1Houston Senior Member • Posts: 2,566
The main issue for using the 45 up close is perspective distortion
1

James Pilcher wrote:

Although many folks like the Zuiko 45 f/1.8 for its small size and easy price, I appreciate the working distance that the 75mm offers; even the 45mm is a bit of an in-your-face lens for this kind of portrait.

45mm after all is a bit short for head shot, although its FF eq FOV is 90mm.  With a "real" 90mm lens, you can shoot farther away, which reduces if not eliminates perspective distortion (nose and cheek bigger than normal).  For the 45/1.8, a head and shoulder shot is probably the closest you can get.

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FoolyCooly Veteran Member • Posts: 3,484
Re: So I finally got a 75mm

These two samples look great. I've been thinking about the 75mm f1.8 and the SLR Magic Noktor 50mm f0.95 for portraits.

How would you rate the AF with the 75mm?

Any chance you could share some outdoor half and full body shots?

Neurad1 Senior Member • Posts: 1,798
Re: So I finally got a 75mm

Haven't used my 75mm as much as I'd hoped. I need to force myself to use it more to get a feel for the distance I must anticipate to frame candid shots. I always seem to find myself too close. Here is one ok shot I got of a colorful guy. Does anyone know why EXIF data no longer posts?

Plaid shirt. Kentuck Arts Festival, Northport, AL

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
Re: The main issue for using the 45 up close is perspective distortion
1

Eh?  As far as I am concerned a 45mm f1.8 on MFT should behave exactly like a 90mm f3.6 on FF.  And that's OK, but not always shallow enough, hence the 75mm f1.8, which is a 135 f3.6, which is shallow as anyone needs to go.

G1Houston wrote:

James Pilcher wrote:

Although many folks like the Zuiko 45 f/1.8 for its small size and easy price, I appreciate the working distance that the 75mm offers; even the 45mm is a bit of an in-your-face lens for this kind of portrait.

45mm after all is a bit short for head shot, although its FF eq FOV is 90mm.  With a "real" 90mm lens, you can shoot farther away, which reduces if not eliminates perspective distortion (nose and cheek bigger than normal).  For the 45/1.8, a head and shoulder shot is probably the closest you can get.

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
Not at all.

In fact, nonsense.  Quite the reverse, her face is so sharp that I've had to put a great blast of NR over the skin to remove the 17 year old's imperfections.
What is it with this terrible fear of shallow DoF? Do people seriously imagine that if they complain ever shot at a wide aperture is "too shallow" that nobody will ever want an FF camera again?
The 75 has a more or less idea DoF/size ratio for most people.  You can easily take out the background (these were shot in a rainstorm, in an ice cream parlour, by the beach, while we wondered what to do next, so the backgrounds are horrid) perfectly well, but the lens and camera can be fitted in two pockets.  
Meantime, have  a nice shallow DoF shot.

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Louis_Dobson
Louis_Dobson OP Forum Pro • Posts: 27,315
Re: So I finally got a 75mm

I haven't had a chance to use it in anger yet!

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Jeff Tokayer Veteran Member • Posts: 6,220
Please!
1

Too tempting.

No I won't. Yes I will. No, yes, no, yes...

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Aleo Veuliah
Aleo Veuliah MOD Forum Pro • Posts: 14,628
Re: I like better this picture.
1

Louis_Dobson wrote:

For completeness, the other one...

I like better this picture than the one on the first post. Well taken.


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Alumna Gorp Senior Member • Posts: 1,531
Re: So I finally got a 75mm

Louis_Dobson wrote:

I don't think anyone should be considering a 75 for portraits before a 45.  The 75 has shallower DoF, less CA, forces you to move further away and costs a fortune.  
However, if you have a 45 and sometimes want shallower DoF, or you want a fast shortish tele, and don't mind the price, it seems pretty good so far.

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Its a good portrait.

I`ve been very tempted by the 75mm, but I`d probably wait to see what this new Sigma 60mm will be like, read it should be available for about £180.

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richarddd
richarddd Senior Member • Posts: 2,982
Re: The main issue for using the 45 up close is perspective distortion

Louis_Dobson wrote:

Eh?  As far as I am concerned a 45mm f1.8 on MFT should behave exactly like a 90mm f3.6 on FF.  And that's OK, but not always shallow enough, hence the 75mm f1.8, which is a 135 f3.6, which is shallow as anyone needs to go.

I'd have said 150. YMMV.

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James Pilcher Veteran Member • Posts: 8,434
a different perspective
7

G1Houston wrote:

James Pilcher wrote:

Although many folks like the Zuiko 45 f/1.8 for its small size and easy price, I appreciate the working distance that the 75mm offers; even the 45mm is a bit of an in-your-face lens for this kind of portrait.

45mm after all is a bit short for head shot, although its FF eq FOV is 90mm.  With a "real" 90mm lens, you can shoot farther away, which reduces if not eliminates perspective distortion (nose and cheek bigger than normal).  For the 45/1.8, a head and shoulder shot is probably the closest you can get.

What??? It is camera position that determines perspective, not focal length.

A 45mm lens on a 4/3 body will give exactly the same perspective as a 90mm lens on an FX body when shot from the same distance. In fact, a 20mm lens on a Nikon D600, shot from the same distance (camera position) as the 45mm lens on an OM-D, then cropped for that 45mm's FOV will give you exactly the same perspective. No stretched nose, no bulging cheek. Really.

Yes, if you step forward with your D600 + 20mm in order to fill the frame in the same way the E-M5 + 45mm does, you will get a stretched nose and a bulging cheek, but you have changed camera position! It is camera position that determines perspective, not focal length.

Jim Pilcher
Summit County, Colorado, USA

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James Pilcher Veteran Member • Posts: 8,434
people fear what they do not understand
6

Ulric wrote:

The DOF is so shallow that most of her face is out of focus.

In my years with digital I've seen many wanna-be photographers deride those who like to work with shallow DOF. It is especially true here in m4/3-Land. It was less so on the pure 4/3 forum. I think it has something to do with people moving up from tiny-sensored P&S cameras to m4/3. I'm flabbergasted by how common it is for people to bemoan how difficult it is to get everything in focus. Obviously they are thinking that if everything is in focus, the entire issue of DOF goes away and they don't have to worry their little P&S brains about the concept.

I like shallow DOF and I use it when appropriate. I also like deep DOF when needed.

By the way, Louis' portrait is just fine. There is not too little DOF. It's a fine image.

Jim Pilcher
Summit County, Colorado, USA

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