-= 90D owners unite! Discuss and Post Photos

In that case I must try it as well tonight

Just got a chance with clear skies to take a moon shot with the 90D and Sigma 100-400 lens. I shot this in raw and processed for maximum detail. This was taken handheld about 15 minutes before sunset. I overexposed the image for more detail.

A couple more mantis shots from the 90D this weekend.

I just picked up a 90D & really liking it so far. What I can't figure out is, if there is a way to get rid of the 1 image jump icon when you're scrolling through pictures. I can easily see where to change it from 1 image to 10 images & all the other options, but I don't need to see it on every picture, every time, as I'm scrolling through.

Found my moon shot from late last December 21st. Modest amount of post processing.

90D / Sigma 150-600 "C" @ 600 / ISO-6400 / Tv 1/1000 / f/11 +1/2EV / AI Servo / Spot AF / Hand held

smallpotatoes wrote in post #19089723
I just picked up a 90D & really liking it so far. What I can't figure out is, if there is a way to get rid of the 1 image jump icon when you're scrolling through pictures. I can easily see where to change it from 1 image to 10 images & all the other options, but I don't need to see it on every picture, every time, as I'm scrolling through.

Are you scrolling with the main wheel (by the shutter)? Use the one on the back.

Archibald wrote in post #19089800
Are you scrolling with the main wheel (by the shutter)? Use the one on the back.

I was using the main dial on the top. It was a minor thing, but it was annoying, so thank you!

LANTANA IN AFTERNOON SUN

For anyone that's interested, I got my tripod ring mount for the Sigma 100-400 lens. It seems fine and well made. It's cut out around the window and controls. The lens seem reasonably balanced on the mount. I couldn't find this in the US and had to resort to ordering through Ebay from China. The label on the box says: "I-Shoot" IS-SM140 and cost S39.99 plus sales tax.

Image hosted by forum (1054300) © T-shooter THIS IS A LOW QUALITY PREVIEW. Please log in to see the good quality stuff.

A test with an old Sigma 400/5.6 APO Macro HSM, non-chipped.
In combination with 90d, I constantly obtained severely underexposed images, over 2 stops.
Closing the aperture below f5.6 gives at most times the usual error (with locking the camera) as on other DSLRs.
I tried this lens, over time, on 300d, 350d, 40d and, curiously, on all these cameras Sigma is overexposing with abt. 1 stop.

Just received my 90D body and went to the local water ski course.

IMAGE LINK: https://photos.smugmug​.com …dited-0652-L.jpg&lb=1&s=A

IMAGE LINK: https://photos.smugmug​.com …ited-0811-XL.jpg&lb=1&s=A

IMAGE LINK: https://photos.smugmug​.com …dited-0392-L.jpg&lb=1&s=A

IMAGE LINK: https://photos.smugmug​.com …ited-0315-XL.jpg&lb=1&s=A

Blue damselfly. The 90D is good for macro!

Photo from Archibald's gallery.
Image hosted by forum (1055839)

HIBISCUS

Canon 90d 50mm Nifty Fifty

Clematis Deadhead. Not a brilliantly sharp photo, but with the Nifty Fifty reasonably happy.

I sent my 90d back to Canon again recently and got it back the other day. I sent it because the AF was still unreliable and it also refused to set different focus points for each orientation, horizontal and vertical, so something was obviously wrong.

There are lots of things that make getting critically sharp images of small birds difficult, having a camera that has a shaky grasp of where the focal plane should be compounds those problems drastically. Errors don't add-up, they multiply: if you lose 1/2 your images due to subject movement and 1/2 of them due to atmospheric instability and 1/2 due to AF problems, you get 0.5 x 0.5 x 0.5 = 0.125 (1/2 of all or 50%, minus half of those, or 25%, minus 1/2 of those is 12.5%) what you have left are only 1/8 of all the images you collected that are critically sharp. That's just a simple example, there are other things that subtract from the number of sharp images, making the situation even worse, and they all have different effects and vary by prevailing conditions.

What does add up is the aggravation. If it weren't for the couple of important improvements that the 90d has over the 5ds and 5dsR, I would have trashed it long before this. But it has such promise for my situation and I'm such a pain in the ass about getting this stuff right that I've had to pursue it.

Canon says that they recalibrated the AF, just as they did for my 5dsR a couple of months ago when it, too, went off in the AF department. Unlike what they did when I sent the 90d in for repair the first time and they said it was OK. There's a lesson there that I failed to grasp when LensRentals said in a blog article a few years ago that they often had to send equipment back repeatedly, not only to Canon, to finally get things fixed.

I should note that I use my equipment (600/4LIS II, extenders and whichever body is favored) almost every day and rack-up more than 100k frames a year.

It will take a while to determine if the 90d is really fixed, as the nature of the problem is that sometimes it works beautifully for a while and it's often difficult to pinpoint the cause of unsharpness in a series of images. And I hate doing tests in controlled conditions for more than a few hours, which can be totally unproductive, if I happen to do it when the camera is working fine.

So, I'd say it's most likely that my 90d really has a defect, like some of LensRentals test models, and it may be fixable and it may be fixed. I'll let you know after I've gathered sufficient images to be meaningful.