I can't imagine that this would cause problems. When I have a question of this nature, I try to take off my search engine goggles and think about user experience. From this view, differing title and H1 tags would be a better indicator of SEO gamesmanship. From the user's perspective, what they see in SERPs sets up an expectation for what is shown on the page. If I click on a link for "Top 10 Digital Camera Reviews," I expect to see an article of the same title on the page.  For search engines to penalize this would be nonsensical.

Of course, if both your title and H1 tags say "camera, cameras, camera reviews, review camera, how to review camera," then you have a problem.  But, as mentioned above, that's not intrinsic to the matching H1 and title tags.