35mm Biogon f/2.0 vs. Biogon C f/2.8 Flare Comparison Images

[mfogiel]

Well FWIW, this is my experience with Biogon 35/2 flare. I seldom use filters, and in particular I do not use them when pointing the lens into the sun.

 

[PMCC]

Q.E.D.

(very nice photos mfogiel)

 

[bwcolor]

Wonderful photos, but the intent was very different. I previously posted a photo with sun and the Zeiss 21mm 'C' lens, but I exposed, as you did and stopped the lens down to capture the subject, which was in direct sunlight. The test above exposed for deep shadow provided by the fence, with the sun just above the image. I would never use an incident reading in the shadow and shoot this way, other than for this test.

 

[ferider]

Here is my lowly Summicron v3 into the sun:

My conclusion ? At lunch time, don't shoot, eat, maybe followed by a nice siesta. Shoot into the sun at different times of day. Better for the shutter curtains anyways 🙂

 

[ampguy]

Hi Mister E - I've not had the flare you're showing the the cron asph, at least in the last 3 images. I have had aperture reflections, but those droplets would worry me a lot, they look like the CV 21/4 flare. BTW, I did not use a filter with my cron asph 35, only hood.

 

[Sparrow]

mmm, ... think I'll stick with my cheap cv f2.5 then ... 😀

 

[sanmich]

I used a friend's black 50 cron with bult-in hood, and that thing flared in situations I thought should be very manageable

I discovered, the hard way, one of the incredibly stupid design faults of the last version of the cron 50:
Internal reflection.
I had the same severe flare, and after thinking that my camera had a light leak, I had to admit that the fault was on the lens.
It's quite incredible, but Leica used, at least on my sample, a glossy black paint on the inner cone around the rear element. place a strong light at the wrong place at the edge of the frame and you get a huge light bouncing spot on the lens rear
I sent my lens to DAG who repainted it with a mat paint, and since then, I've had no serious issues with it.
So let me ask Leica politely...
doh??😕

 

[ampguy]

very nice photo

very nice photo

that's how I shoot in the sun as well, straight on, exposing for the shadows. I notice that looking at the images, my eyes automatically squint, the way I would as if looking in the vf when taking the photo, you can't stare, you have to quickly gaze to compose to avoid eye damage.

nice photo! And that CV 35/2.5 is a pretty good lens ...

mmm, ... think I'll stick with my cheap cv f2.5 then ... 😀

 

[bwcolor]

Again, incident expose for deep shadow and then compare flare.

 

[Sparrow]

that's how I shoot in the sun as well, straight on, exposing for the shadows. I notice that looking at the images, my eyes automatically squint, the way I would as if looking in the vf when taking the photo, you can't stare, you have to quickly gaze to compose to avoid eye damage.

nice photo! And that CV 35/2.5 is a pretty good lens ...

I use it for colour films, I forgot to pack it this summer and had to use my black and white lens (a m2 type f2.8 summaron) that flares a bit



_29_0173 by sparrow rf, on Flickr

 

[ampguy]

that's not bad either

that's not bad either

the flare droplets are barely noticeable.

I use it for colour films, I forgot to pack it this summer and had to use my black and white lens (a m2 type f2.8 summaron) that flares a bit



_29_0173 by sparrow rf, on Flickr

 

[semilog]

This is about the worst-case scenario for lens flare that I can imagine.

Unlike many images posted here it was not hazy, but bitingly clear. The sun is actually at the edge of the frame; but, worse, the reflectance of the concrete walkway was extremely high. Exposures with the sun to my back were running EV17-18 due to the reflectivity of the concrete and the adjacent water and light-sand beach. It was actually painful to look in the direction of the sun without sunglasses. Full sun (not behind a layer of haze) was shining on the front of the lens. No hood.

The Biogon-C did very well here. Note the shadow detail retained in the two kids. If I'd bothered to do a bit of burning in post, I could have pulled out the two flags on the top of the roller coaster. My scanner was struggling with the Dmax there. A real silver-gelatin print would be better.

Note that this frame, unlike several posted in this thread, is metered and exposed for the shadows.

It's worth noting that I've never seen any reflections with this lens, and veiling flare is very well controlled. I cannot say the same for my old Summilux ASPH, which was in every other respect but flare a marvelous lens.

The film is ACROS, developed in Rodinal 1:50.

 

[Costo Kim]

unfortunately skopar 35/2.5 waay far from 'imperfect' biogons

link

 

[Sparrow]

the flare droplets are barely noticeable.

I should probably have it cleaned but my tech-chap charges extra for old leica lenses, he claims they're over-engineered

 

[Sparrow]

unfortunately skopar 35/2.5 waay far from 'imperfect' biogons

link

get the hood?

 

[ferider]

My 28 and 35 Color Skopars do pretty well in direct Sun:

 

[ferider]

And here is a 20$ OM Zuiko 28/3.5

 

[ampguy]

M8 / 35/1.4 pre asph lux:

Finepix F50 close up into projector lamp:

 

[Mister E]

Hi Mister E - I've not had the flare you're showing the the cron asph, at least in the last 3 images. I have had aperture reflections, but those droplets would worry me a lot, they look like the CV 21/4 flare. BTW, I did not use a filter with my cron asph 35, only hood.

I used no hood or filter.

 

[Tim Gray]

Looks like to me they both flare, but the 35/2 has a hazier, rounder flare around the sun, while the 35/2.8 has more structure to its flare, with the streaks and the bit around the bottom of the frame.

I've had no veiling flare from my two current Leica lenses. The 50 Summicron is a different story - that certainly did flare.