ahsanford said:hpmuc said:
Good forward, thanks! Looks like my lenses are not in the 'partial sealing' camp (besides the front element).
But I still would like a read on the viability of this concept for just dust and sand. Again, moisture isn't a concern for me.
- A
thedman said:mrsfotografie said:7enderbender said:dilbert said:7enderbender said:It would change the way they provide such high mechanical quality. Dare I say that for me it's really the other way round: why doesn't Canon provide any digital full frame body that works reliably as a full time manual focus camera only? Answer: very few people would be buying something like this in this day and age. But I'd still prefer it.
You don't use live view for manual focus?
No. Never. I can't stand it. If live view was gone I wouldn't know it.
+1
As a landscape shooter I use live view/MF almost exclusively. I even set my autofocus lenses to manual and use them just as I use my Zeiss. I want absolute precision. Can't just hear a beep and hope it's correct.



Policar said:surapon said:.Policar said:It's up to you! For many reasons this lens seems to be far and away the best normal lens available for FF digital cameras (apparently exceeding Leica's expensive options), however if you need autofocus (this seems to be more of a studio lens) I would skip it.
For astophotography I can see it being amazing and the apochromatic correction means that colors are much purer in out of focus areas. If you have the money and want the best image quality I think this is a no-brainer, but if you're happy with your Sigma (I have one, too, and like it for what it is), why upgrade unless you feel you're missing something?
I find the longitudinal chromatic abberation on other fast 50mms very ugly, whereas I find the sample photos from this lens to be flawless and have a look I associate with medium and large format photography.
Thank you, Sir, Dear Mr. Policar
Sorry, I do not understand what you talking about " For astophotography I can see it being amazing and the apochromatic correction means that colors are much purer in out of focus areas."----I do not try to get involve of Astophotography yet, Just try to shoot the Moon and the comet( Comet Panstarrs) in past 5-6 years---Just Try.
Have a great day, Sir.
Surapon
The moon isn't the best example of astrophotography since it's so bright. For photos of stars you want to shoot wide open to minimize the time your shutter is open and most fast lenses have coma and soft corners:
http://intothenightphoto.blogspot.com/2013/02/overcoming-coma-aberration-part-2.html
50mm is a little long for astrophotography, but this could still be really great for that.
Apochromatic correction eliminates "bokeh fringing." In these photos (with the excellent 35mm f1.4 G Nikon lens) you can see that the out of focus areas take on green/magenta fringes:
http://www.kenrockwell.com/nikon/images1/35mm-f14-afs/bokeh/D3R_3745-14.jpg
http://www.kenrockwell.com/nikon/images1/35mm-f14-afs/D7K_6803-crop-0600.jpg
This is most apparent in the second photo (white against black), but it makes all colors look cloudy and muddy.
If you look at photos taken with the Zeiss lens, they do not have this aberration:
http://diglloyd.com/articles/ZeissZ/ZeissZ-Otus-55f1_4.html
To me this is a really big deal. The 70-200mm f2.8 II IS is also near-apochromatic by most accounts and people praise it for its beautiful color rendering. Current fast 50mm lenses have lots of bokeh fringing, which I find very distracting and ugly in color.
sdsr said:As someone else has suggested, unless 2.8 isn't fast enough you may want to consider the 100L instead of an 85 - the Canon 85s, whatever other virtues they plainly have, suffer horribly from blueish fringing (different from the standard purple CA) wide open around pale objects that aren't quite in focus. I've never seen that (or any other visible flaw for that matter) with my 100L, whose only flaw is one all macro lenses have - it doesn't focus fast if you switch suddenly from a close subject to a distant one (or vice versa). And, thanks to its greater focal length and very short minimal focus distance, you can conjure up marvelous background blur that gives the 85L and 135L a run for their money (for all I know all this is true of the non-L 100mm macro too). Its advantage over the the Sigma 85mm lens (which is otherwise excellent - or at least the copy I rented was) is greater mechanical consistency - i.e. you will be less likely to need to return it. The 100L's advantage over all the 85mm and other 100mm lenses for Canon is that it has IS, which can be useful.
As for 35mm, I've not used the 35mm L. The 35mm IS is excellent, as is the Sigma. both of which I rented when they were new. The advantage of the former is its IS; the advantage of the latter, aside from the obvious speed factor, is its superior performance with regard to coma - which matters if you do much shooting in low light where there are small, bright points of light; this is nicely shown in the respective reviews at lenstip. (Unable to decide which one's relative advantages mattered to me more, I procrastinated until the ridiculous short-lived Adorama price reduction on the 28mm IS occurred and bought one of those instead - it's excellent too.)
pensive tomato said:Thanks for your work with Magic Lantern! This also brings to mind the silly limitations on the behavior of the Set button that I thought you tackled as well.
Dylan777 said:You will never see a lens cap in my camera bag. All lenses are protected with BW Clear Filter, including X100s. Ready to shoot at all times.
J.R. said:Well ... I returned the 16-35 yet again (didn't get third time lucky). This was the third copy I checked and didn't like it wide open - stopping down to f/8 or so was better but I can get the 17-40 if that was my main purpose.
Maybe I need to look elsewhere ... the 17mm TSE perhaps ... this just seems to go on forever.
SJTstudios said:Zooms: 18-55, 75-300
willhuff.net said:pinnaclephotography said:......or would if the House of Representatives hadn't thrown a temper tantrum and closed the National Parks...which is a real pity...hopefully that situation will be resolved by late October/early November (best times for Zion).
Fixed that for you.
extremeinstability said:Around 1200 1 second shutters behind the tornadic storms in northwest Iowa last night.... https://vimeo.com/76230613
Canon 6D Sigma 50 F1.4 at F2, 1 second, 200 ISO.
Don Haines said:We know from the 70D that canon can put 40Mpixels onto an APS-C sized sensor.. all you need to do is read the two halves separately and there's your high megapixel sensor