Sigma and Tamron OS/VC quirks

weixing said:
Hi,
3kramd5 said:
I now own two third party stabilized lenses, the sigma 70-200 2.8 EX (there are a lot of letters and I always forget them) and the tamron 150-600. I've noticed a quirk they both exhibit that none of my canon IS lenses do: when the stabilizer engages, the frame tilts down what visually feels like about 5-10°. With the 70-200, it's not that bad, but at 600mm with the tamron, 10° is a lot.

Has anyone else noticed that kind of this happening? What's the explanation? Misalignment in the stabilizing optic? Maybe I'll shoot a video if nobody can picture what I'm seeing.
My tamron 150-600mm will usually just "jump" (meaning that it'll return to the initially aiming point) a bit when IS is activated... sometime if the IS is not activated for a long time, the frame will move down a bit, but still very close to my AF point... at 600mm, the distance it move is around the size of my 6D centre AF point... not very much... my handshake is easily 10 times worst than that... ha ha ha :-P

Have a nice day.

Haha, yah hand shake is much worse. It's easy to compensate for, but it just seemed... quirky.

AlanF said:
My 150-600 doesn't have that problem or indeed any that others have reported. My former 100-400L used to drift in IS.

Interesting. Maybe it's just a manufacturing tolerance issue if yours doesn't do it.
Upvote 0

100mm 2.8 vs 85mm 1.8

Ruined said:
lloyd709 said:
sunnyVan said:
The specular highlights produced by the 85 1.8 look angular, not circular. That's part of my consideration when I sold it. Also maximum usable aperture is probably about 2.5 which is too close to my 100L's 2.8. Bokeh is not 135L quality. Nobody should expect that. But it's far better than 50 1.4. Personally like 100mm blur better though. Also it has no weather sealing.

On the good side the 85 focuses faster than the 100L. The focus seems more consistent and reliable. This is only based on my personal experience.

The 85 is a great value lens. You should definitely try it. Nothing to lose.

Don't agree with you on the usable aperture of 2.5. It's the best lens I own and virtually never take it off 1.8 for professional portrait work - it's a belter of lens, I reckon by far the best bang for buck in the Canon line up.

85 f/1.8 is great value but I agree with the previous poster that if you need to stop it down to f/4 for a group shot the angular bokeh is ugly. I wish Canon would update this with a 85mm f/1.8 IS design similar to the 35mm f/2 IS.

I personally would rather have the 100L of the two for its dual purpose macro/general as well as more pleasing bokeh stopped down.

Interesting that you liked the 100L bokeh stopped down? I didn't like it even wide open. Can you share some images- in case it was my technique which was the issue (and it might well be... :) )
Upvote 0

CPN Interviews the Men Behind the EOS-1 Series SLRs

My first DSLR (2004) was a 1Ds - I've still got the OM2 bodies and lenses I used before, and now they feel tiny
housebrick.jpg


Things came full circle this year when I got a 100D for Macro and for some work use (10-18 and 15-85) alongside my 1Ds3.

I've large but relatively thin hands and find the shape of the 1 series just great (the Canon side hand strap from my 1Ds is now on my mk3 - along with the grey/black Canon strap).

The 100D took some getting used to, although my wife (who can't use the 1Ds3 for any length of time) thinks it's just ideal in size.

The interview (as expected) doesn't really say much, although the (very) optimistic might see it as a prelude to the mini 1 series that replaces the 7D ;-)

PS In looking for that photo above, I looked again at the article it's from - one of the first I wrote, in 2004, comparing film and digital :-) :-)
http://www.northlight-images.co.uk/digital-black-white.html
My, how some things change, and others don't ;-)
Upvote 0

People at work

infared said:
AcutancePhotography said:
Don Haines said:
AcutancePhotography said:
Serious question: Have you had any bad experiences taking pictures of people working? I imagine that some workers might object.
I have never had a problem photographing people.... you ask first :) If they say yes, go for it!, if they say no, just say thanks and move on....

I always like to ask first. I know that I don't like it when people take my picture with out letting me know, so I assume other people may not like it too.

Of course these days, if you take a picture of a person you are automatically a stalker/creep and if you take a picture of a building/structure you are a terrorist. (facepalm)

If the workers are in a public place, or visible from a public place and you are not trespassing in any way...you can take all the photos you want..whether they like it or not! :-) At least that is the law.
Most police don't know this either. (oh..big surprise there)...and the there is nothing in the Patriot Act or Homeland Security that takes that right away from me as an American Citizen. As soon as a cop approaches an artist and tells him to stop, the terrorists have won by instilling FEAR and taking away are democratic rights, which is why it was so great to live here in the first place????? 8) 8) 8) Everybody needs to get on the page....

Great way to get your camera chopped in half and a black eye. Taking pictures of someone after they told you to stop is rude. Police and civil liberties are another matter, but harassing someone trying to get a job done is not cool.
Upvote 0

Lens to body pairing

Hi Canon1.
Thanks for that advice, it certainly seems to be the consensus to not carry the Sigma. I have to get past the mental block that 500 is better than 400 cropped, I just can't seem to prove the point to myself, I accept that I have a poor but improving technique which is probably holding the 200+2x back and I have not got round to doing direct comparison shots from a tripod to convince myself. Perhaps I should carry the 40D with a wider lens for the scene shots?

Canon1 said:
I would ditch the sigma... Permanently. The 70-200 is a sharper more responsive lens even with a 2x. Cropping that at 400 to the same fov as the 500 sigma will yield a better image, and your keeper rate will be higher. I'd bring the 40d along as a backup body. That's what I would do.

Hi Hjalmarg1.
I can confirm that I am very happy so far with the 70-200 2x combination, and to me the lens on its own seems stellar, I couldn't be happier with it.
I think I might now be going with

Bodies lenses
7D With EF 70-200 f2.8 IS II with or without EF 2X III
40D With Sigma 17-70 for the ambiance shots, (it seems to make more sense than carrying a backup body with only a body cap on it.)

Cheers, Graham.

Hjalmarg1 said:
I have used the combination 7D + EF 70-200 f2.8 IS II with EF 2X III and provides very good results in terms of sharpness and image quality. You'll not be dissapointed.
And without the teleconverter the EF 70-200 f2.8 IS II is one of the sharpest lenses in Canon line-up.
Upvote 0

Image quality with or without filters

Sporgon said:
Agree with those that say a good quality one has no adverse effect apart from flare, but as I shoot into the light a lot I don't use them, unless I'm in a really aggressive environment. The multi coatings of these lenses are really tough.

+1, good quality filters have minimum effect on picture quality. I agree that shooting indoors can save you from using/requiring the extra protection of filters, although I prefer keeping them on, not only for extra protection but also are easier to clean.
Upvote 0

Canon Announces the PowerShot SX520 HS & SX400 HS

chmod said:
They could have a new high MP unit in the channels NOW. They could have an innovative mirrorless body in the channels NOW.

Why do you think they don't? Bear in mind that Canon has the best-selling and most-profitable DSLRs right now. In light of that, what specific reasons might Canon have for their lack of high-MP body? Have Canon shooters been flocking to Nikon D8xx bodies? Or to Sony?

You may be happy with these new announcements, and that is your right.
Why do you assume that? Perhaps we're just realistic. Nikon has demonstrated that a high-MP body is not as profitable as what Canon is selling now. Sony has demonstrated the same for mirrorless. Canon does not want to sell your perfect DSLR just to people like you, they want to sell a popular and profitable body.

It might do you some good to pick up an introductory business textbook.
Upvote 0

Sigma to Announce 14-24 f/4 OS & 24 f/1.4

Re: Sigma to Announce 14-24 f/4 OS & 24 f/1.4

I also fear the front element will be size of an elephant and shape of football. But we'll see.
I purchased Lee 100mm system maybe a day or two before I heard the rumor of new Sigma.
What I have heard, the EF 16-35 F4 is fantastic lens, I think it can't disappoint me.
Just need to save some money..
Upvote 0

My latest Cooking Video

Yes, correct unit.

Yes, plates will fit. The plate for the Ace is longer, but same profile etc. (basically made by same manufacturer, Vinten Group, Sachtler pitched at very top end market traditionally)

502 is a decent enough head, might want to try the 438 leveller first, if nothing else that gives you a great B tripod if you do go ahead and buy the ACE.

If you demo one, make sure it's counterbalanced for the kit on it, you can't appreciate the difference until it's laden and balanced. The 502 comes pretty close, but it's spring is preset and the resistance isn't stepped.

Small differences, but it's that whole 3% difference and law of diminishing returns.
Upvote 0

connect ST-E3-RT with Canon SR-N3 cable?

As Graham says, the SN-R3 is for triggering the camera shutter from the flash, and it's only needed with pre-2012 bodies, your 1D X can be remote-released directly via the hotshoe.

You should be able to connect the camera's PC terminal to the 600's PC port (or hotshoe if you have the PC-to-shoe setup) and it will fire as a 'dumb' flash. The ST-E3-RT cannot be triggered except via a hotshoe connection (direct or via an off-camera shoe cord like the OC-E3).
Upvote 0

B & H is already selling 7D Mark II Accessories

If it was going to go the whole 1D direction (urgh, sorry) it would have a proper card door, proper eye cup and the diopter on that side would be replaced with the blackout lever. How much of this really makes it into a 7D II is anyones guess but I would be pretty confident they'd put a proper door on it if they were serious about it.
Upvote 0

Canon 5D Mark III Discoloration/Pealing; Slowly Growing

Ruined said:
The second photo in the OP tells me this was a production problem with the paint on the back panel of your camera. This should be covered under warranty, but you may have to fight for it. If it truly were due to the user abusing the camera, the wear would not be uneven like that across the bottom.

My guess is that they let the primer dry too long before shooting the top coat. You're supposed to let it dry to the point where it is no longer liquid, but if you go too much longer than that, the paint will peel off in sheets when under moderate stress. This often occurs when a part gets primed at the end of the day on a Friday, but they run out of time and end up painting it on the following Monday.

This happens on cars, too, occasionally. If you've ever seen a Chevrolet with a mostly primer-grey hood, you know what I'm talking about. :)
Upvote 0

Filter

Forum statistics

Threads
37,440
Messages
973,702
Members
24,806
Latest member
mamanyota

Gallery statistics

Categories
1
Albums
29
Uploaded media
372
Embedded media
1
Comments
25
Disk usage
1 GB