Still on M 28 mm

[Annibale G.]

Advertisement (gone after registration)

I will see. Anyone who can suggest me something here? Thanks

[cbretteville]

Here is Erwin Puts on the 28/2.8 ASPH ElmarM 2.8/28mm asph

 

Must say I'm really happy with my 28/2, haven't used the new 28/2.8 so I can't attest to it's quality.

 

Carl

[stunsworth]

I have the new 28mm f2.8 and it's excellent, really excellent. I can't say that I've noticed the high contrast that others have commented on, but maybe that's because I don't have a 28mm Summicron to directly compare it to.

[Xmas]

Hi

 

See here for data sheets

 

Leica Camera AG - Photography - Lenses

 

Noel

[edit] similar data is available for the Zeiss ZM lenses google [/edit

[tategoi]

Anyone here has any experience with the much cheaper Voigtlander 28mm f/2 Ultron? If you rate Leica 28mm Summicron as 100, what would you rate the US$580 Ultron?

 

[250swb]

Anyone here has any experience with the much cheaper Voigtlander 28mm f/2 Ultron? If you rate Leica 28mm Summicron as 100, what would you rate the US$580 Ultron?

 

 

Its basically sharp and has nice bokeh, but also has focus shift from f4 to f11. Its difficult to use therefore with any subject that needs critical focusing. Resolution at f2 isn't so good either. I'd say it was rated at 75% if the Summicron is 100%, but only if the Ultron's characteristics where OK for you, if not (like the focus shift), it would only rate 35%.

 

Steve

[yanidel]

Advertisement (gone after registration)

The Ultron has a bit less contrast and colder colors. Yet a nice lens, I'd rate it a 80%. Note that the Cron did not impress me either (compared to 24 Elmarit and 35 Lux Asph), I sold both.

[lct]

...Does anyone know something more about the f/2 one and the f/2,8? Is it one better in quality, dimension ... than the other?...

I use both Summicron & Elmarit asph 28 on Epson R-D1 and R-D1s bodies. Both are modern sharp lenses and are probably the best 28 i've ever used over my otherwise favorite Zuiko 28/2, Elmarit-R 28/2.8 and Rokkor-M 28/2.8. The Summicron is a bit less contrasty than the Elmarit asph and has a slightly smoother bokeh. The Cron vignettes a lot at f/2 but it's not a problem with modern raw converters. The 28/2.8 asph seems to vignette a bit more than the Cron at f/2.8 on my Epsons. Never got disturbing flare, distorsion or chromatic aberration with both lenses but i don't use filters and i don't shoot architecture at all. I would certainly bring the Summicron on the desert island but i'd miss the small size of the Elmarit asph a lot.

[PDW]

Hello!

 

I buyd the Voigtlander 28mm f/2 Ultron yesterday.

I'm very happy with this Lens.

The Picture was made with M8 in DNG

 

 

 

Dieter

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

[bmc]

It's twice as fast and twice as expensive. .

 

how is it twice as fast? really? i have the 50 f2, i am looking at buying a 24 or 28 and have been playing around with shooting and stopping myself at 2.8 on my 50 (vs. f2) and i can not really see a difference indoors or in moderate to low light. sure if its really dark, but nothing i have not been able to overcome with increased iso. so twice as fast? is it different than my 50 f2 vs f2.8?

[lars_bergquist]

how is it twice as fast? really? i have the 50 f2, i am looking at buying a 24 or 28 and have been playing around with shooting and stopping myself at 2.8 on my 50 (vs. f2) and i can not really see a difference indoors or in moderate to low light. sure if its really dark, but nothing i have not been able to overcome with increased iso. so twice as fast? is it different than my 50 f2 vs f2.8?

 

The 'speed' of a lens is a basic geometrical fact: f:2 lets through twice as much light as f:2.8 because the aperture 'hole' is twice the area. So during an exposure of e.g. 1/60th of a second, the wide open f:2 lens lets in twice as many photons as a wide open f:2.8 lens does. So this has nothing to do with your convenience, or the ISO you apply. With a 'slower' lens, you have to use longer exposures, or up the ISO, or get more light on the subject -- with a flash, maybe.

 

The old man from the Age of the Hand Meter

[bmc]

The 'speed' of a lens is a basic geometrical fact: f:2 lets through twice as much light as f:2.8 because the aperture 'hole' is twice the area..

 

The old man from the Age of the Hand Meter

 

okay, i get and i understand this (even before i posted the question) but wouldnt f2 be twice as fast as f4, not f2.8? would f2 really not be 1.4 times faster? im not trying to start a fight, or argue of words, im am seriously confused. again, i am new and have only one lens my 50 f2, and so far have not seen a huge difference (twice the price value added in the 28 cron case) between f2 and f2.8 with my 50mm.

 

so my question is :

 

with the 28 does that extra stop make more of a difference than it does on my 50? i am looking for the fastest lens, and if money were no object, i would pick up the cron. however, i dont think i would miss it on my 50. i do realize i will use the 28 more indoors and everyday, so maybe im missing something here and need the extra stop on a 28?

 

thanks.

[pop]

... wouldnt f2 be twice as fast as f4, not f2.8? would f2 really not be 1.4 times faster?

 

The f-stop number is your focal length divided by the diameter of the hole in the lens which passes the light. Hence, half the f-number means double the diameter of the hole for each lens. A lens with a maximal aperture of f2 and a focal length of 50mm has therefore an aperture of 25mm.

 

The amount of light which reaches the film depends on the area of the hole, not on the diameter. Your lens will pass four times as much light at f2 than it does at f4.

 

As you have noticed, the focal length of a lens is already factored into the aperture number (f2, f2.8 etc). That means that every lens will pass the same amount of light at the same f-stop number. (There are minor differences, depending on the construction and materials used in the lens, but these will not perceptibly change the brightness of the resulting image).

 

with the 28 does that extra stop make more of a difference than it does on my 50? i am looking for the fastest lens, and if money were no object, i would pick up the cron. however, i dont think i would miss it on my 50. i do realize i will use the 28 more indoors and everyday, so maybe im missing something here and need the extra stop on a 28?

 

That's it. If you're bound to photograph in the same settings with your 28mm as you did with the 50mm, a lens with the same speed would give the same results in terms of exposure times.

 

If you plan on doing more indoors shooting, you might appreciate a faster lens.

[bmc]

T

 

If you plan on doing more indoors shooting, you might appreciate a faster lens.

 

thanks for the reply, thats how i understood it. again, for twice the money im not sure the extra stop is that significant. thats why ive been playing around with my 50 at f2.8. dont get me wrong, i would love to have the faster lens, but the funds are just not there. being that is the case would you guys suggest the faster voigtlander. im prepared to pay for a the leica lens at 2k or so used, would the faster voigtlander nokton be a better choice?

[tgray]

With respect to distortion, I've *read* that the 28/2.8 ASPH has almost none. The 28/2 has some, but not that I've ever noticed in my shooting.

 

bmc - I don't know. 28 is my most used focal length and I felt the extra stop of speed was worth the extra money to me. I can't answer that for you. Same with respect to the CV 28/2. Looks like a nice lens. I'm sure many are happy with it. I just decided that I wanted a really good lens instead of 4 almost as good ones

[kemal_mumcu]

If you're willing to spend 2K on a used Leica lens then you're almost into f2 summicron territory already.

 

Wider angle lenses tend to be more forgiving in low light account camera shake being less noticeable than their longer focal length brethren. I have a 21mm f4 lens and I'm amazed at what I can shoot at f4 and 1/4 of a second. Its very hard to consider getting many keepers with a 50mm at the same speed. This is all good and well keeping in mind that your subject can not be moving.

 

I guess I'm saying that for a lot of practical considerations a 28mm 2.8 could be as useful as a 50mm f2 in the same low light conditions - just because you can get better results from a slower shutter speed on a wide angle lens.

 

All said, if you can spring for an f2 then do it. It'll be more versatile in the end. I hear a lot of good things said about the Voightlander 28s. Even the older screw-mount f1.9 version.

[wilfredo]

I wish I had not sold my 28mm Summicron ASPH back in my analogue days. Now it is crazy to replace due to the new and insane price of Leica lenses. Thankfully I replaced it with a 35mm Summicron ASPH which is my primary lens on the M8. I don't think I've come across anything sharper than the 28mm Cron ASPH lens.

[bmc]

If you're willing to spend 2K on a used Leica lens then you're almost into f2 summicron territory already.

 

.

 

i wish that were true, the closest ive been able to find the cron is about 3300.00 demo or used.

 

the 28 2.8 1200-1800.00. obviously i would like to be closer to the low end.

 

thanks, ill keep looking for that 28.

[tgray]

I've seen the Summicron around recently in the $2300 neighborhood. Keep looking.

[Advertisement]

Hallo,

Look here: Interesting Leica gear

[bmc]

I've seen the Summicron around recently in the $2300 neighborhood. Keep looking.

 

where? im on the west coast. ive checked a few of my local spots but have found nothing under 3200. just got off ebay same story. i would love to buy one from someone liquidating or selling off their personal collection vs. buying one from a retailer or store.