topic Re: pentax lens on eos body in EF & RF Lenses

pentax lens on eos body

FrankGolesic — Mon, 21 Jun 2021 15:23:40 GMT

is there an adapter that can run the autofocus on the canon ? Have a fotodiox adapter , but totally manusl .

Re: pentax lens on eos body

ebiggs1 — Mon, 21 Jun 2021 15:33:44 GMT

You mean an AF adapter to work a Pentax AF lens on a Canon body for AF? ........No, there isn't and likely never will be.

Re: pentax lens on eos body

FrankGolesic — Mon, 21 Jun 2021 16:07:03 GMT

Thanks , worth a shot . What about flashes , inherited a lot of pentax flashes

Re: pentax lens on eos body

ebiggs1 — Tue, 22 Jun 2021 13:36:29 GMT

It won't work automatically either.

Almost no other camera manufacturer's gear, or off brand accessory, will work correctly with the auto features of a Canon camera. Some third party accessories work fairly well to poorly.

Re: pentax lens on eos body

docusync — Thu, 24 Jun 2021 21:36:08 GMT

Your flashes will work but only in the manual mode with no TTL and HSS (ISO standard center pin connection only), and if they have optical triggers - you can fire them remotely as well. For a studio-type photography that's probably all you need.

For something more like "run-and-gun" when you really need TTL and HSS - 3rd party flashes are pretty cheap these days. You can buy a Yongnuo or Godox in a $100 ballpark that will be 100% compatible with your Canon camera.

Re: pentax lens on eos body

Waddizzle — Fri, 25 Jun 2021 10:32:36 GMT

@docusync wrote:
Your flashes will work but only in the manual mode with no TTL and HSS (ISO standard center pin connection only), and if they have optical triggers - you can fire them remotely as well. For a studio-type photography that's probably all you need.

For something more like "run-and-gun" when you really need TTL and HSS - 3rd party flashes are pretty cheap these days. You can buy a Yongnuo or Godox in a $100 ballpark that will be 100% compatible with your Canon camera.

I would [not] wish Yongnuo gear on my worst enemy. There are posts all over these forums about Yongnuo gear not being fully compatible with the Canon E-TTL system.

Re: pentax lens on eos body

docusync — Fri, 25 Jun 2021 05:04:19 GMT

Their new flashes like the YN600EX-RT II (the model name looks very similar to Canon's) are fully compatible. It's more like an ethical question if it's ok to use a copy-cat flash. The Godox model (V860 II) would be vastly superior to the Canon 600 EX-RT II, but it's around $200+ (which is still pretty cheap).

This was an offtopic though... Just a recommendation for the OP if they need TTL and HSS "on the cheap", otherwise just stick with what they got, and it'll work just fine.

Re: pentax lens on eos body

ebiggs1 — Fri, 25 Jun 2021 15:12:22 GMT

"I would [not] wish Yongnuo gear on my worst enemy. There are posts all over these forums about Yongnuo gear not being fully compatible with the Canon E-TTL system."

Agree, I would never and I don't recommend or advise anyone buying one of these. Just because they look alike doesn't mean a thing about the insides.

Re: pentax lens on eos body

docusync — Sun, 27 Jun 2021 05:55:52 GMT

Never had problems with Yongnuo. While I mostly shoot with strobes these days - I used a bunch of different flashguns including Yongnuo, Profoto, Canon & Godox. The YN600EX-RT II is 99% as good as the "original" Canon, for about 1/4 of the price. If money is not an object - the Profoto A10 would be my choice due to abudance of native modifiers and adapters, fast recycling, iOS compatibility (Profoto Camera), better trigger options and [most important] - I can combine it with large Profoto strobes, and even use the flash as a wireless trigger itself.

Re: pentax lens on eos body

Waddizzle — Sun, 27 Jun 2021 13:12:59 GMT

@docusync wrote:
Never had problems with Yongnuo. While I mostly shoot with strobes these days - I used a bunch of different flashguns including Yongnuo, Profoto, Canon & Godox. The YN600EX-RT II is 99% as good as the "original" Canon, for about 1/4 of the price. If money is not an object - the Profoto A10 would be my choice due to abudance of native modifiers and adapters, fast recycling, iOS compatibility (Profoto Camera), better trigger options and [most important] - I can combine it with large Profoto strobes, and even use the flash as a wireless trigger itself.

Your post reminds of the people who claim to have never had any problems using micro-SD memory cards.

Re: pentax lens on eos body

ebiggs1 — Sun, 27 Jun 2021 14:07:20 GMT

"Your post reminds of the people who claim to have never had any problems using micro-SD memory cards."

It is always the best thing since sliced bread until it ain't.

"The YN600EX-RT II is 99% as good as the "original" Canon,..."

And for a person that is just a hobbyists you are probably right. Miss a shot, so what? Shoot it over! Or, just move on, no biggie. But for a pro photographer that has to have it work 100% of the time, the story changes.

There is a reason they look like a real Canon flash. They try their best to copy what Canon engineers have done. Sometimes they get pretty close as you mentioned. There is also a reason they cost way less, too. They don't have to engineer and or design and they don't have to use the best materials. Just get it compatible and working at 80% or 90% and it is just fine.

Re: pentax lens on eos body

docusync — Sun, 27 Jun 2021 15:33:32 GMT

@ebiggs1 I'The original question was about using a Pentax flash on a Canon body... Does it look like what a "pro" would do on a paid job? There is no point recommending a $500 flash to someone who just cares about repurposing some old flashes.

For anyone claiming to be a "pro" - the Canon 600EX-RT II is not a "pro" choice, not even close. It's a slow AA powered dinosaur. How many shots you'd miss while it's taking 5s to recycle between FP shots? The EL-1 - maybe, if you're shooting events and ~70 w/s without a modifer is all you need. For anyone who more or less serious about lighting - Profoto is an obvious choice. Need more than 70w/s? A B2 on a Boomerang would give you 250 w/s on cam. You can even outfit it with a 2' OCF octa. No budget for Profoto - Godox. Canon? Nope. It's not even a lighting brand...

@Waddizzle what's wrong with microSD? No need to take my word on the YN600EX-RT II. Look at the reviews @ B&H or Amazon. For the price you won't find anything better.

Re: pentax lens on eos body

kvbarkley — Sun, 27 Jun 2021 18:34:12 GMT

Nothing is wrong with microSD, per se. What is wrong is that using it in a camera with a full-size adapter tends to fail at the worst time.

If the search worked better, you could search these forums and find the hundreds of times folks had issues, swapped the microSD+Adapter for a full size card and the issues went away.

Re: pentax lens on eos body

Waddizzle — Sun, 27 Jun 2021 21:53:18 GMT

"For anyone claiming to be a "pro" - the Canon 600EX-RT II is not a "pro" choice, not even close. It's a slow AA powered dinosaur. How many shots you'd miss while it's taking 5s to recycle between FP shots?"

Far from an accurate statement about the Canon 600EX.

The recharge on the Canon 600EX actually varies from 0.1 to 5.5 seconds. The recharge time on the Yongnuo 600EX is fixed at 3 seconds, which I assume would include its low power mode. BTW, both models use AA batteries.

In addition, the Yongnuo is an older design, which seems to have problems with the more recent camera releases. I have yet to hear someone mention that they updated the strobe via USB. I have yet to hear someone say they sent it to the factory, and had a firmware update performed so that it can HSS with the most recent models.

The Canon is also weather resistant, which the Yongnuo is not. This last is huge.

Re: pentax lens on eos body

Waddizzle — Sun, 27 Jun 2021 22:05:24 GMT

@docusync wrote:
.
@Waddizzle what's wrong with microSD? No need to take my word on the YN600EX-RT II. Look at the reviews @ B&H or Amazon. For the price you won't find anything better.

As noted above, the plastic adapters cause them to become very unreliable. Speak of the devil. Here is a recent post!

https://community.usa.canon.com/t5/Software/Photos-not-saved-250d/m-p/346200#M12572

Another forum member with a camera doing strange things, who is also using a micro-SD card with an adapter. I am 99.99% certain that switching to a full size SD card will eventually prove to be the cure.

Every Canon DSLR User Guide contains a page where Canon recommends what type of memory cards to use. In recent years they recommend one of three types of SD cards: SD, , SDHC, and SDXC. A micro-SD card is a different type of card, and it is not listed.

My advice is this. If you are currently using them in a Canon DSLR, then you would be wise to stop immediately.

Re: pentax lens on eos body

ebiggs1 — Mon, 28 Jun 2021 15:27:25 GMT

"The original question was about using a Pentax flash on a Canon body."

I thought it was about a Pentax lens? Well, whatever, however the flow of a thread goes is fine with me.

A person that sells his work or makes a living from it has a different look on things. None of us is going to be using a flash that has to dump its entire charge on every shot. Not if they hope to sell the photo, that is. You know what they look like?

You can get uncle Bob who lives down the street that just bought a new Rebel to do that. Probably for free, too!

Most of the time a top of the camera flash unit is in a fill role capacity. I have six Canon top of the line flashes and never missed a shot because of one of them. Never, not once.

You want to bu a YN600EX-RT II or use a micro-SD card I am sure you have all our permissions to do so. You will not likely, however, change our minds as to how poorly these work.

"Look at the reviews @ B&H or Amazon."

IMHO, Amazon is the last place I would go to read any reviews on photographic gear. Also, it is nearly the last place I would go to buy any photographic gear! For beginners and hobbyists, fine, I guess.

Re: pentax lens on eos body

ebiggs1 — Mon, 28 Jun 2021 15:39:16 GMT

Remember I did agree with you on this.

"The YN600EX-RT II is ~~99%~~ (almost) as good as the "original" Canon,..."

And, for a person that is just a hobbyists you are probably right.

I doubt you can get the several "regulars" here, that have different opinions on lots of stuff, lord knows, to change their minds on about micro-SD and Yongnuo flashes.